{
  "date": "2026-11-01",
  "scope": "Sampled appearance on 40 curated portraits; developer-led AI review.",
  "models": {
    "Zankai": {
      "mean": 76.775,
      "paired_case_bootstrap_95": [
        76.475,
        77.0
      ]
    },
    "Wan": {
      "mean": 67.9,
      "paired_case_bootstrap_95": [
        67.35,
        68.45
      ]
    },
    "LongCat": {
      "mean": 65.85,
      "paired_case_bootstrap_95": [
        65.475,
        66.15
      ]
    },
    "LTX": {
      "mean": 49.475,
      "paired_case_bootstrap_95": [
        47.525,
        51.65
      ]
    }
  },
  "portraits": [
    {
      "id": "portrait-01",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-01-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-01-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable face and background; clean but fairly generic oval mouth.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/88742e4557a9bac4b17c87d660dbc694eb4b45e9068fe36cc96bc1bc95509c67.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-01-wan.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Identity retained; cyan mouth highlights and uneven shapes distract.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/9adef4cd9535378b4d84389c63cd4900c304d05aeb7108be18dc42f90d207e9a.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-01-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Bright magenta lip edges and oversized openings depart from the source style.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/7d3bd06131a668aa9c22bcc13bc79d90f3a155af23b4c7bd306863ba5183cbbe.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-01-ltx.jpg",
          "score": 52.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 4
          },
          "observation": "Added subtitles and background strokes; late darkening and changing framing.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-02",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-02-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-02-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable source detail and clean opening; simple cavity shading.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/88513a76983a4627737e19c41ada25f986c30fbc2348c6a64737bc1a019b6762.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-02-wan.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Cyan teeth, dark mouth gaps and uneven contours reduce natural appearance.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/f7b65c458e2b41c108ec988e1457e37ddb96cd482d2d27fafdc4d10260b33b19.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-02-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Strong white and pink mouth bands; inconsistent mouth styling across samples.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/8c8e3a422c63be139b3ddecbeffa5e7f8838e8aeb8357d943f05d163ed660c38.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-02-ltx.jpg",
          "score": 57.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 4,
            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Face reframes, mouth softens and late frames darken.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-03",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-03-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-03-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Source lips retained with a clearer cavity; the opening remains restrained.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/bf0085280afac5d39672a999833b03497464da2607048feb85cc660e2c3c032d.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-03-wan.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Source identity holds; blue-white bands and changing lip shapes look synthetic.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/1fae056f8fe9e3580c1c6f3bcd28d449ceb9d1b84569df4b669a89cf3a2bf81f.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-03-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Strongly outlined large mouth and changing cheek creases depart from the subtle source.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/7d1c11af8306c739faee6c2b420b4da878e303f6619a3f145f8539e3f028e969.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-03-ltx.jpg",
          "score": 49.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Subtitles added; mouth becomes soft and the face shifts outside the fixed crop.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-04",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-04-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-04-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable linework and clean opening; simple interior rather than detailed articulation.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/c55a833e5f1a5deeb0d5466a72eaea5b7ef246bbf4ebb1ff59416786267dc798.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-04-wan.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Cyan-white tooth bands and uneven opening contours; identity otherwise retained.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/ca119bfd702c7164e38f424360f338d858e6368b53af76464b1fbf393eda8bf0.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-04-longcat.jpg",
          "score": 61.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Large outlined mouth and changing chin/cheek lines alter the elderly face.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/ba1717c02fe1c3df3f33e5f32ea7089bb8c5f9d2e5b7f7f1efe0d2d7fbeb60ae.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-04-ltx.jpg",
          "score": 40.0,
          "criteria": {
            "identity_composition": 3,
            "no_added_content": 2,
            "sampled_stability": 2,
            "mouth_appearance": 3
          },
          "observation": "Added text and background lines, ghosting and marked late appearance changes.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-05",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-05-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-05-zankai.jpg",
          "score": 74.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 3
          },
          "observation": "Preserved texture and composition; opening is still very restrained.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/56c31e38ac51d5dad31ede9807a265dabab7fcb0b055de387fe902fcde8ca7f7.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-05-wan.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Purple/cyan mouth edges and variable lip geometry differ from the subdued source.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/301c75164f7ab9578f37fbf28007aecc97e5d6a18ecc0501c56855a70774abf2.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-05-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Broad bright tooth bands and exaggerated opening; face otherwise consistent.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/bb0ea62ad8562fd8f8f51ba2b4013f0e38e2991ba3d15be368c7925be40a4dec.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-05-ltx.jpg",
          "score": 40.0,
          "criteria": {
            "identity_composition": 3,
            "no_added_content": 2,
            "sampled_stability": 2,
            "mouth_appearance": 3
          },
          "observation": "Added subtitles, reframing and late darkening; enlarged mouth is soft.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-06",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-06-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-06-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Source lip shape retained with a visible, restrained dark cavity.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/b2d69d52ced755091572c7d5ace03fea8e30dd5446293df4e79a5a9d4c7ef8f1.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-06-wan.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Cyan-white interior and inconsistent lip contour; stable identity.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/8bf64d556287c86e38efd847de57c60d8d563d5378e6ad022c4790af3d934377.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-06-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Bright white/pink tooth bands and changing outline look overdrawn.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/d88cd08fb3414ead27825f4216fc0ff4f3f3e465075d59b7c713248cd2683923.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-06-ltx.jpg",
          "score": 52.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 4
          },
          "observation": "Mouth is readable, but background particles appear and composition shifts.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-07",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-07-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-07-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Clean consistent oval opening with stable source linework.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/7b2a11e9d2a738b49895a5ba0712cf6a9686c31f0064d2fa304a77c011503858.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-07-wan.jpg",
          "score": 63.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 2
          },
          "observation": "Jagged interior detail, cyan edges and implausibly bright closed-mouth states.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/f38a34aeb134520d4ea60ef8eec8d1f3eb0614585861eba6ff94293b76e1ee74.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-07-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Vivid pink-white mouth bands contrast with the restrained source style.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/aa74e2c21b1e1f926689e4eddcb020c7a8568dc420ee3ffb711eda573bcbe6de.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-07-ltx.jpg",
          "score": 49.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Added subtitles/background marks and substantial pose/reframing changes.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-08",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-08-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-08-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Source lips retain their shape around a clearer cavity; small tooth slivers remain.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/c667d32578daaee52305519e85e2132e93e3e92ece4053ad2516b9ab82f1bad5.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-08-wan.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Variable rounded mouth and broad white tooth strips alter the source lip style.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/776dd80e4b187da9d9c2b23e0643fe2821cafd51547b9bfaeb49daf056e3bbc1.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-08-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Large outlined opening, changing lip shape and heavy white bands.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/290c24c6d2a7720ac233eb74cff8afb87c1a03037d7732819264741622fe9b31.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-08-ltx.jpg",
          "score": 52.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 4
          },
          "observation": "Readable mouth, but subtitles and background scribbles are introduced.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-09",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-09-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-09-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable lips and cleaner interior; visible white upper strip remains stylized.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/da35c69ba72920d547fb25add785ee1a82a2769cd81878fc62933347a2e78796.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-09-wan.jpg",
          "score": 69.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 4
          },
          "observation": "Readable speech shapes but bright tooth slabs and changing lip fullness.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/6302dea6401ba5234557a9336ee5fd19ce82f557ad93af3a102279f83c816422.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-09-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Wide black opening, white bands and added cheek creases change the mouth style.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/a43e7bdee2dad571e4e7ef0830c9f9d9a13b260ec24db5cf90cbed0b91e03290.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-09-ltx.jpg",
          "score": 52.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 4
          },
          "observation": "Subtitles and growing background debris; facial proportions also shift.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-10",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-10-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-10-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable source lips around a clear dark cavity and thin upper teeth.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/e2fbe103d2a7b7893d6a11c302632dcd77e304b0410b9b99bcc9f56f7070c74a.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-10-wan.jpg",
          "score": 73.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 4,
            "mouth_appearance": 4
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          "observation": "Generally clean mouth with some variable geometry and subtle facial changes.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/48efebae4f41a69fba1732f6b5185194cbf7363e492a0a6d03f25a059d7a737b.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-10-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Large black/white openings and thick pink edges alter the original mouth styling.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/5f5135507d973f23a70afc426d1e68748d59cde280f1d24c830c708a64a2861c.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-10-ltx.jpg",
          "score": 40.0,
          "criteria": {
            "identity_composition": 3,
            "no_added_content": 2,
            "sampled_stability": 2,
            "mouth_appearance": 3
          },
          "observation": "Subtitles, background marks and strong zoom/reframing; mouth softens.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-11",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-11-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-11-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "mouth_appearance": 4
          },
          "observation": "Stable original lips and clear cavity; thin tooth strip is slightly flat.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/16513fff57ee3ddc262a458ab02337accd8486a7a4c596815f7810e297ef8a30.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-11-wan.jpg",
          "score": 69.0,
          "criteria": {
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            "mouth_appearance": 4
          },
          "observation": "Generally readable mouth, though tooth highlights and lip shape vary.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/25e0dc3354d35c02cd15fbd3d968554a31483210419e0b6afb7ad509252873d2.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-11-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
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          "observation": "Oversized black opening with bright bands and pouting lip substitutions.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/d063adcfa343cc2dbe663d6302f1ec0324f0fa9eebda3821e9b62aef38992eec.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-11-ltx.jpg",
          "score": 40.0,
          "criteria": {
            "identity_composition": 3,
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            "sampled_stability": 2,
            "mouth_appearance": 3
          },
          "observation": "Added text, changed clothing/background and pronounced late body distortion.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-12",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-12-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-12-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable source composition and clear speech cavity; corners remain slightly angular.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/ab88e75d50cfde8784f931147ee85ccd7475310a4aad10b14be40bbd62e08c48.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-12-wan.jpg",
          "score": 66.0,
          "criteria": {
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            "mouth_appearance": 3
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          "observation": "Narrow and round mouth states vary strongly, with blue-white tooth highlights.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/8fd01eca77a4c261e6f93beca16dee717d70fc134463e2141ea096c032dba90a.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-12-longcat.jpg",
          "score": 66.0,
          "criteria": {
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            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
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          "observation": "Large bright mouth bands and exaggerated cavity alter the subtle original mouth.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/1d523e0fdfaee6bba66487f77df524b11a0399a35a14f0d56e1d1f01bfbad833.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-12-ltx.jpg",
          "score": 49.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 3
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          "observation": "Added text and background fragments, with changing mouth edges and framing.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-13",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-13-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-13-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable source lips and a clear small cavity; subtle tooth slivers remain.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/fe8a54441412217e50d4724057d1821eb323a50edd9e77d4fdf29d4906c2496b.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-13-wan.jpg",
          "score": 69.0,
          "criteria": {
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            "mouth_appearance": 4
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          "observation": "Mostly coherent mouth shapes, with bright teeth and changing lip fullness.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/baea9fca517993cba64bffc424b38a139e71077826b05798c9d828987b7f1f12.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-13-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 4,
            "mouth_appearance": 3
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          "observation": "Exaggerated cavity and pink/white bands change the subtle mouth style.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/1e9481cfb7c2057e0db83ff7909ca9c984379214b2eb077d000730937cdb0406.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-13-ltx.jpg",
          "score": 49.0,
          "criteria": {
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            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Subtitles and background debris; face translates beyond the source crop.",
          "videoPaddingSeconds": 0
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    },
    {
      "id": "portrait-14",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-14-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-14-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Consistent lip placement and readable cavity, with a slightly angular upper tooth strip.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/132a4bb57ebbe9e9af84319ef4aeff0d8388209c431f7839c8844f670db4a226.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-14-wan.jpg",
          "score": 69.0,
          "criteria": {
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            "sampled_stability": 4,
            "mouth_appearance": 4
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          "observation": "Generally readable mouth, though bright closed-mouth teeth and varying width distract.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/c4f8263eeff21d4491a70c0f305171685adc9f85e8a61f4dbe83381997affe43.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-14-longcat.jpg",
          "score": 66.0,
          "criteria": {
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            "mouth_appearance": 3
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          "observation": "Strong black opening and thick bright bands; added expression lines.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/ecdd63c7e826bbc0d878d4ca61d18016ab29eb1b156b753cfb57ebac6c8c3392.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-14-ltx.jpg",
          "score": 49.0,
          "criteria": {
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            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Text and background fragments appear; pose and mouth geometry change.",
          "videoPaddingSeconds": 0
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    },
    {
      "id": "portrait-15",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-15-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-15-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "mouth_appearance": 4
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          "observation": "Consistent face and clean opening; simple cavity and upper tooth strip.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/b96980fd389939e0be5fec66ee6f0c91986c70ace6cd117f395cadd79fbdd92d.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-15-wan.jpg",
          "score": 69.0,
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            "mouth_appearance": 4
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          "observation": "Generally coherent speech shapes with bright tooth highlights and varying width.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/892e92a77085f085d967c158b557c2a0fc0bc074a044b70614dcb7cfc6a21762.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-15-longcat.jpg",
          "score": 66.0,
          "criteria": {
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            "mouth_appearance": 3
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          "observation": "Exaggerated black cavity and bright bands look disconnected from the source mouth style.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/a70c1736e68ee8690137b8ccd1a7d410e3af421a5cf5ba22854fbaa958e28bbf.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-15-ltx.jpg",
          "score": 49.0,
          "criteria": {
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            "sampled_stability": 3,
            "mouth_appearance": 3
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          "observation": "Added subtitles, soft mouth detail and strong late reframing.",
          "videoPaddingSeconds": 0
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      ]
    },
    {
      "id": "portrait-16",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-16-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-16-zankai.jpg",
          "score": 77.0,
          "criteria": {
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            "mouth_appearance": 4
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          "observation": "Clear opening and upper teeth while retaining source lip placement.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/5bd908850c3249ce66609a996167f021ec6634695915646dd79e2ec1ea81b438.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-16-wan.jpg",
          "score": 69.0,
          "criteria": {
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            "mouth_appearance": 4
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          "observation": "Readable speech mouth with variable lip thickness and pale tooth strips.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/ebf5d82ed2a599bd2261c7476f278d15f91f54790f1688314871d9b146dd9198.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-16-longcat.jpg",
          "score": 66.0,
          "criteria": {
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            "mouth_appearance": 3
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          "observation": "Large mouth cavity, bright bands and added cheek contours exaggerate expression.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/491206757ec5e480cd4af8b84837eae7464b5d194624e461fa9ab5ba087cc9a1.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-16-ltx.jpg",
          "score": 40.0,
          "criteria": {
            "identity_composition": 3,
            "no_added_content": 2,
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            "mouth_appearance": 3
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          "observation": "Text, background artifacts and major late reframing alter the composition.",
          "videoPaddingSeconds": 0
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      ]
    },
    {
      "id": "portrait-17",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-17-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-17-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "mouth_appearance": 4
          },
          "observation": "Stable source and clean opening; upper interior outline remains somewhat uneven.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/34ea97eca6bce1611a7ed0f75490be559f5f9af7b5968167c11db4bf07f190bf.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-17-wan.jpg",
          "score": 69.0,
          "criteria": {
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            "mouth_appearance": 4
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          "observation": "Generally readable opening but broad pale tooth strips and variable width.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/2a906832f7122d051d071fa9cf5b7cad35c306ff7ae1f4c5b103c01a32148dda.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-17-longcat.jpg",
          "score": 66.0,
          "criteria": {
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            "mouth_appearance": 3
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          "observation": "Large black mouth and vivid white/pink bands distort the restrained original style.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/5e975ca18be559f0c3467b3d96eaed3de0a7b0a5695d30c4e2d7d0b408c7dbe0.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-17-ltx.jpg",
          "score": 49.0,
          "criteria": {
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            "mouth_appearance": 3
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          "observation": "Text and background particles are added; shifting smile shape and framing.",
          "videoPaddingSeconds": 0
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    },
    {
      "id": "portrait-18",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-18-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-18-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Source lip body retained with a clearer cavity and upper tooth strip.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/f3155c74f62d42e73426c48b9299a590002b1234eafa89898aee84693113fdb1.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-18-wan.jpg",
          "score": 66.0,
          "criteria": {
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            "mouth_appearance": 3
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          "observation": "Strong pale teeth and inconsistent mouth width/lip fullness.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/08e0a165036445c20879c31a09b01a4b0b3f9b150deb8ce6febf099c01fce1e6.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-18-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
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            "mouth_appearance": 3
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          "observation": "Exaggerated opening with heavy white bands and changing cheek creases.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/0f8c41cb77f110ee24192d61684cca543343b45779af4a9b9ce45590f715cbb4.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-18-ltx.jpg",
          "score": 59.0,
          "criteria": {
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            "mouth_appearance": 2
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          "observation": "Text is added and mouth appears closed throughout the sampled sequence.",
          "videoPaddingSeconds": 0
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      ]
    },
    {
      "id": "portrait-19",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-19-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-19-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable source linework and clean opening; simple interior and lower resting line.",
          "videoPaddingSeconds": 0
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        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/1a094af229caf9e73a2ae02a9f779008b416da8afebc94f051f9dad208fa3a6c.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-19-wan.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Source broadly retained; changing smile creases and bright uneven tooth edges.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/8960949279a5abf024d3e56ea22db5a582cff41f601e2860385ec01505fe9668.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-19-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Large black openings with bright pink and white bands; mouth shape varies strongly.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/0511dd795101ee72d9b5a896a84f508d32594ac64e0f4781537580690bd076f6.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-19-ltx.jpg",
          "score": 49.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Added subtitles, floating background debris and late darkening; variable mouth and face shape.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-20",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-20-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-20-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable source lip shape with a visible small opening and upper teeth.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/bba08b5191a02aae683040ce43110599c2e84946b998502aa85c20625534ab4c.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-20-wan.jpg",
          "score": 69.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 4
          },
          "observation": "Coherent varied openings, with blue-white teeth and some changing smile shape.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/abd6b215d0f1287d5ed5833517b9604eebad78393195d3ab02530d4a92ec1929.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-20-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Large dark openings, bright tooth bands and pronounced changes in mouth contour.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/3f43b0befe81c9ffdacc753ecada1d1f806bc09767efaa4a1ba7d824994d15d7.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-20-ltx.jpg",
          "score": 46.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 2
          },
          "observation": "Subtitles and background debris added; mouth remains closed across most samples.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-21",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-21-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-21-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Source proportions retained; clear cavity with a simple bright upper tooth strip.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/93b1dfd8a50b4937eca3414733bb72f75503e766ff3a2c044b3e1709fa856f75.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-21-wan.jpg",
          "score": 69.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 4
          },
          "observation": "Readable coherent openings; smile broadening and blue-white tooth bands alter the source style.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/f3f3d2862640509d31ed06eb60a0ad3b8d3f7f9415ef342d0d3c8d2010304884.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-21-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Strongly expanded openings and high-contrast white/pink interior; changing chin and cheek contours.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/17c8fd7788f2e570ad52ebac34c2b77349f2af297ae197129922e4f39262751f.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-21-ltx.jpg",
          "score": 49.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Added subtitle text and background writing; mouth becomes uneven in later samples.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-22",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-22-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-22-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "mouth_appearance": 4
          },
          "observation": "Preserved face and lip outline; small but visible cavity and clean tooth edge.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/f0fe54cd8e75910d2e2493e76f35346378695c2c313e32fc4847ac9d71536e2e.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-22-wan.jpg",
          "score": 69.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 4
          },
          "observation": "Coherent openings with blue-white teeth and changing smile creases.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/621f21db09acb65172f4b6e3dc5f0e35df687d99a43dcbd2e0aead409ad74a16.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-22-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Large dark cavities, bright tooth bands and rounded lip shapes depart from restrained source styling.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/5c6ef0c511651e21984e76e0f8cda103b5466cda70d2a7dddd90def476272764.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-22-ltx.jpg",
          "score": 46.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 2
          },
          "observation": "Added subtitle block and floating debris; mouth scarcely opens across samples.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-23",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-23-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-23-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable source styling and slightly larger clean cavity; limited internal detail.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/9ca422e0331aaf11a94623df51c812243d9d69d1f93c606188e6d55f2fbffd35.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-23-wan.jpg",
          "score": 69.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 4
          },
          "observation": "Readable openings with blue-white teeth and changing lip and cheek contours.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/339d554cf0cfb86ef31c82747fb4257b61a51443a4fbad5b4a83cc052d6b50a4.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-23-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Large bright pink-rimmed mouths and strong black/white contrast differ from source styling.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/c85e705d6e2e5fbdffeeaa60ca84631d490fc856c33538682c0dbdb13eccb9a4.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-23-ltx.jpg",
          "score": 49.0,
          "criteria": {
            "identity_composition": 4,
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            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Added subtitles and heavy moving background debris; mouth shape and lower lip vary.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-24",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-24-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-24-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Preserves face and lip contour with a clear small cavity; simple bright tooth band.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/e384d6da1f390257140b1fac6117609205b40756853cc9707e187b3589103164.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-24-wan.jpg",
          "score": 69.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 4
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          "observation": "Coherent varied openings, with bright blue-white teeth and changing lip shape.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/b1d788b6ac70a387361f63fc16e5b31101ea390a7992c777a1e80b69e22415df.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-24-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
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            "mouth_appearance": 3
          },
          "observation": "Exaggerated large openings and bright pink lip rims; changing smile creases.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/fa0f3a65631b74c5ff5effc5e565eaba28eb5cab928bd427eaab0d577f8cc97c.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-24-ltx.jpg",
          "score": 46.0,
          "criteria": {
            "identity_composition": 4,
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            "sampled_stability": 3,
            "mouth_appearance": 2
          },
          "observation": "Added subtitles and large late framing shift; speaking mouth remains nearly closed.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-25",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-25-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-25-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 5,
            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable source face and clean simple cavity; similar appearance to A.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/e0d67151a5ea8c2d9667575d7efcef4b186de39e99e6d637041ee5cae7a7f966.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-25-wan.jpg",
          "score": 69.0,
          "criteria": {
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            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 4
          },
          "observation": "Coherent openings, but bright tooth bands and smile widening alter source expression.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/847bdfa7b0785a85f5dc5a9418d991b0b7be4b3c1c0506500f905fa74c8f0b7d.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-25-longcat.jpg",
          "score": 66.0,
          "criteria": {
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            "mouth_appearance": 3
          },
          "observation": "Large dark mouth, bright white and pink bands, and changing surrounding creases.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/17e9d489f9c1dc61b92cd4d016ff1c33d4400cf9f9d7fb5a5742f225c0213a86.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-25-ltx.jpg",
          "score": 49.0,
          "criteria": {
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            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Added subtitles and background debris with changing face scale and tooth shapes.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-26",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-26-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-26-zankai.jpg",
          "score": 77.0,
          "criteria": {
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            "mouth_appearance": 4
          },
          "observation": "Source contour retained with readable cavity; simple bright tooth band and heavy corner lines remain.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/7b78dbe0ef50fc9e034c7de7a13ec692bebd8a1ab9c16e8cdb89a21a3c3d5638.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-26-wan.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
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          "observation": "Irregular tooth shapes and blue-white highlights; changing lip shape and expression.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/a9b2820a0cbe259e208067ff836dc6cd520b66af61cd2f5a418cdce65affd2f1.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-26-longcat.jpg",
          "score": 66.0,
          "criteria": {
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            "mouth_appearance": 3
          },
          "observation": "Large black openings and bright teeth, strong lip contour and expression changes.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/57937473d4c363a8fb15bd396c65b34a790e4c0f7badbeb452b3076c71cb309d.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-26-ltx.jpg",
          "score": 46.0,
          "criteria": {
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            "sampled_stability": 3,
            "mouth_appearance": 2
          },
          "observation": "Subtitles and background marks appear; mouth scarcely opens and late framing shifts.",
          "videoPaddingSeconds": 0
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      ]
    },
    {
      "id": "portrait-27",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-27-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-27-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Stable source proportions with visible restrained opening and preserved lip outline.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/f429c2d2237d4b5cc7cf25d89d940ea4dabb26b45e1a4c9edf5fb0592cd6d53b.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-27-wan.jpg",
          "score": 69.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 4,
            "mouth_appearance": 4
          },
          "observation": "Coherent cavity shapes with moderate smile and lip shape changes and blue-white teeth.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/e45c27347a45d1a979465ce9db6d267ed12de56c70e90aa330738551e7acf100.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-27-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Strongly changing rounded lip shapes and bright tooth bands; large openings.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/e3b47937d99715c4ed7426c48f9b68d207560c058f076a52ffa159539543dd1c.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-27-ltx.jpg",
          "score": 49.0,
          "criteria": {
            "identity_composition": 4,
            "no_added_content": 2,
            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Added subtitles and chest badge; late scale change, variable lip and face shape.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-28",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-28-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-28-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "sampled_stability": 5,
            "mouth_appearance": 4
          },
          "observation": "Source linework and identity retained; clean simple cavity without tooth detail.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/3b757af1d22a717288be278a932f68fe31cbba019b9d1712d2d26d51e86e1abd.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-28-wan.jpg",
          "score": 66.0,
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            "mouth_appearance": 3
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          "observation": "Jagged segmented teeth and uneven mouth edges, with changing smile contours.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/60f12743687aa5c8b09e05b487a4032074ac8cc37ec7c50238ef7d4caa3d041d.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-28-longcat.jpg",
          "score": 66.0,
          "criteria": {
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            "mouth_appearance": 3
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          "observation": "Large black cavities, bright white/pink bands and exaggerated surrounding creases.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/40b317beae7da9874ba12b326bb94bf2dc258b299ae34714a8500b4c5c3e6f17.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-28-ltx.jpg",
          "score": 49.0,
          "criteria": {
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            "mouth_appearance": 3
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          "observation": "Subtitles and large looping foreground/background marks, late darkening and changing face shape.",
          "videoPaddingSeconds": 0
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      ]
    },
    {
      "id": "portrait-29",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-29-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-29-zankai.jpg",
          "score": 77.0,
          "criteria": {
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            "mouth_appearance": 4
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          "observation": "Source face and lip shape retained; small but visible cavity, limited interior detail.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/a5d746f446f3ce2e1f741a8dedc133b28f0274b1cef0cd75efb253844c364a04.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-29-wan.jpg",
          "score": 69.0,
          "criteria": {
            "identity_composition": 5,
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          "observation": "Coherent visible openings; brighter tooth edges and changing smile contour.",
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        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/979f8072ee0a067285f4d378375c139e3ad03a2177f17b046fa5a06f2a20163d.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-29-longcat.jpg",
          "score": 66.0,
          "criteria": {
            "identity_composition": 5,
            "no_added_content": 4,
            "sampled_stability": 4,
            "mouth_appearance": 3
          },
          "observation": "Very large dark openings with bright pink and white interior and changing cheek creases.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/faa9e2eeb3be33260824e849c5b840068867266a9715dc4a1eed9917c51c9daa.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-29-ltx.jpg",
          "score": 49.0,
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            "sampled_stability": 3,
            "mouth_appearance": 3
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          "observation": "Background writing and clothing details added; large late scale change and varying mouth shape.",
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      ]
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    {
      "id": "portrait-30",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-30-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-30-zankai.jpg",
          "score": 77.0,
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            "identity_composition": 5,
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            "mouth_appearance": 4
          },
          "observation": "Clean stable source identity and simple clear cavity, closely matching A.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/26c39d9db7d70b377e8091d6b5c257f874a83098b0228f30b642c8467d6a4ff5.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-30-wan.jpg",
          "score": 69.0,
          "criteria": {
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            "sampled_stability": 4,
            "mouth_appearance": 4
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          "observation": "Readable varied openings with some blue-white tooth outlines and smile changes.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/9b4ee5abf68b613b2b61b8b8f81f0f2db96e302222ea977d788da070f1e8b084.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-30-longcat.jpg",
          "score": 66.0,
          "criteria": {
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            "mouth_appearance": 3
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          "observation": "Large dark openings, bright teeth and changing lip and cheek contours.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/3dcb7d4eb2887018b6b998a6c38b30851af099238e232abd8bb40022a68065ba.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-30-ltx.jpg",
          "score": 49.0,
          "criteria": {
            "identity_composition": 4,
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            "sampled_stability": 3,
            "mouth_appearance": 3
          },
          "observation": "Subtitles, background marks and strong late darkening; variable tooth shape.",
          "videoPaddingSeconds": 0
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      ]
    },
    {
      "id": "portrait-31",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-31-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-31-zankai.jpg",
          "score": 77.0,
          "criteria": {
            "identity_composition": 5,
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            "mouth_appearance": 4
          },
          "observation": "Source face retained; visible restrained cavity with simple upper tooth strip.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/a279523a179b28413ace6088c787f3c299fe1b79c54dbf45383aecaf7d182c0f.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-31-wan.jpg",
          "score": 69.0,
          "criteria": {
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            "mouth_appearance": 4
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          "observation": "Coherent varied openings; changing smile creases and bright tooth outlines.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/5003721b9981b36b0c122623c03333b4753a6920dec19d7bf3ac6e2a67ba74cc.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-31-longcat.jpg",
          "score": 66.0,
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          "observation": "Very large black openings with strongly contrasted teeth and rounded lip changes.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/4da79cc40ab646cbbe22f139a3e009722bcd0f8544a8491da463c5ab5bde7e12.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-31-ltx.jpg",
          "score": 46.0,
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          "observation": "Subtitles and background loops added; mouth is effectively closed in most samples, late darkening.",
          "videoPaddingSeconds": 0
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    {
      "id": "portrait-32",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-32-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-32-zankai.jpg",
          "score": 77.0,
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            "mouth_appearance": 4
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          "observation": "Stable source linework and clean simple mouth opening without detailed teeth.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/0abd9ac48207526bff626fcb006f41c348f88b433428c0b9102b6c0cca7a67ed.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-32-wan.jpg",
          "score": 66.0,
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          "observation": "Uneven tooth outlines and mouth edges with changing lower creases.",
          "videoPaddingSeconds": 0.1875
        },
        {
          "model": "longcat",
          "name": "LongCat",
          "url": "/benchmark-assets/anime40-20261023/f7a0b6552093573483ef6d69f47daf191dbb8f4b3de8d3ed8c851b489bd96f20.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-32-longcat.jpg",
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          "observation": "Large dark cavity and bright segmented teeth; shifting lip, chin and cheek creases.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
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          "url": "/benchmark-assets/anime40-20261023/d63ba9e86d7ffdcd14974ff1cc0a44019a328505043968f0026ed216b748028d.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-32-ltx.jpg",
          "score": 66.0,
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            "mouth_appearance": 3
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          "observation": "No obvious new objects, but late whole-frame darkening and drifting mouth and tooth shapes.",
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    {
      "id": "portrait-33",
      "arms": [
        {
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          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-33-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-33-zankai.jpg",
          "score": 74.0,
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          "observation": "Source contour retained but still a narrow dark strip with rough small interior detail.",
          "videoPaddingSeconds": 0
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        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/87aad0194221126d5cd0818b7f52ed700d5624a699280b1e0d5c0b0ad9f971ee.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-33-wan.jpg",
          "score": 69.0,
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          "observation": "Coherent openings, although tooth highlights and smile shape change the source style.",
          "videoPaddingSeconds": 0.1875
        },
        {
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          "name": "LongCat",
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          "poster": "/benchmark-assets/anime40-20261101/portrait-33-longcat.jpg",
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          "observation": "Strong large openings and bright white/pink bands, changing lip and lower-face contours.",
          "videoPaddingSeconds": 0
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        {
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          "poster": "/benchmark-assets/anime40-20261101/portrait-33-ltx.jpg",
          "score": 49.0,
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          "observation": "Subtitles added; mouth and face details vary with slightly uneven lips.",
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      ]
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    {
      "id": "portrait-34",
      "arms": [
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          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-34-zankai.mp4",
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          "score": 77.0,
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          "observation": "Source lip contour retained with a clearer small cavity and simple upper tooth band.",
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        {
          "model": "wan",
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          "url": "/benchmark-assets/anime40-20261023/8f37d338b6f34769c76dc1617999b83da0dd7741d7294a06427190f0efa24722.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-34-wan.jpg",
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          "observation": "Irregular segmented teeth and rough cavity edges with changing smile folds.",
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        {
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          "url": "/benchmark-assets/anime40-20261023/a765f91ace88799275b8c479df93b74c4438bb686a6181108775f75283affc6b.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-34-longcat.jpg",
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          "observation": "Large black openings, white tooth bands and strong pucker and cheek changes.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "ltx",
          "name": "LTX",
          "url": "/benchmark-assets/anime40-20261023/f8244e627a76a4589cd741b74a03d1a73db895a948c0b18a800a2a576732108f.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-34-ltx.jpg",
          "score": 46.0,
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          "observation": "Added subtitles, background writing and badge; large late framing shift, mouth barely opens.",
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      ]
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    {
      "id": "portrait-35",
      "arms": [
        {
          "model": "zankai",
          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-35-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-35-zankai.jpg",
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          "observation": "Moustache retained with a visible small mouth cavity and tooth strip; restrained opening.",
          "videoPaddingSeconds": 0
        },
        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/b324c9f30ecb8d2bc45fce65eea12b99c9fb64af2b05129c0ba476994da738eb.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-35-wan.jpg",
          "score": 69.0,
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          "observation": "Readable varied cavity with bright tooth outlines; facial hair and lower mouth creases vary.",
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        {
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          "url": "/benchmark-assets/anime40-20261023/431605ff29c776ffafc1ea8b880463a1578cb901c4e6d64464bc56ba8d5929f6.mp4",
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        {
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          "score": 49.0,
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          "observation": "Subtitles added, late darkening and facial hair changes; variable tooth and mouth shape.",
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    {
      "id": "portrait-36",
      "arms": [
        {
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          "poster": "/benchmark-assets/anime40-20261101/portrait-36-zankai.jpg",
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          "observation": "Source lip fullness retained but aperture remains tiny with compressed interior detail.",
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        {
          "model": "wan",
          "name": "Wan",
          "url": "/benchmark-assets/anime40-20261023/01cbf85aa166ad183c8ecb2fc0f514257713361aa2c8ecf723b1e5f9ca59e88b.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-36-wan.jpg",
          "score": 69.0,
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          "observation": "Coherent varied openings, with bright tooth outlines and changing lip shape.",
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        {
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          "url": "/benchmark-assets/anime40-20261023/2a3f5db369d7d52a7605d2c2760dc3b7dced32ea4713343e25b7fa7528f77eff.mp4",
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          "observation": "Large dark openings and strong white/pink bands; lip contour changes markedly.",
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        {
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          "poster": "/benchmark-assets/anime40-20261101/portrait-36-ltx.jpg",
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          "observation": "Readable openings and generally coherent lips; face and lip shapes vary across samples.",
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    {
      "id": "portrait-37",
      "arms": [
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          "name": "Zankai",
          "url": "/benchmark-assets/anime40-20261101/portrait-37-zankai.mp4",
          "poster": "/benchmark-assets/anime40-20261101/portrait-37-zankai.jpg",
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          "observation": "Stable source portrait and clean simple cavity, matching D closely.",
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        {
          "model": "wan",
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          "poster": "/benchmark-assets/anime40-20261101/portrait-37-wan.jpg",
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          "observation": "Readable small openings, some bright tooth edges and changing smile shape.",
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        {
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          "observation": "Large black openings with strong pink/white bands and changing lip and cheek contour.",
          "videoPaddingSeconds": 0
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        {
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          },
          "observation": "Added subtitles, background scribbles and a border line; varied but simple mouth shapes.",
          "videoPaddingSeconds": 0
        }
      ]
    },
    {
      "id": "portrait-38",
      "arms": [
        {
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          "observation": "Coherent varied openings, with some uneven tooth highlights and smile widening.",
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        {
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        {
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          "observation": "Subtitles and background marks added; nearly closed mouth throughout, late darkening.",
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        }
      ]
    },
    {
      "id": "portrait-39",
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        {
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        {
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    {
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  },
  "limits": [
    "Model labels masked and presentation order randomized; evaluator had prior familiarity.",
    "Cohort curated in Zankai\u2019s favor; competitor outputs archived.",
    "No human ratings; sampled appearance does not establish audiovisual quality.",
    "All scored clips retained; confidence intervals describe portrait variation, not reviewer uncertainty."
  ]
}
