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    "story_id": "mp-2026-10-10-004",
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    "headline": "The Image Editor Became Its Own Strictest Critic",
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    "dek": "A frozen internal critic rejected edits that looked plausible but missed the request or damaged preserved content.",
    "summary": "A frozen internal critic rejected edits that looked plausible but missed the request or damaged preserved content.",
    "body_text": "Rubric-CEPR improves an image editor using its own generations rather than human-edited targets or an external reward model. A planner proposes edits, the editor creates candidates, and a frozen critic applies separate checks for making the requested change, removing the old state and preserving everything else. Non-compensatory gates reject candidates that fail any essential condition before adapter training distills the best survivors. On Qwen-Image-Edit, the authors report an ImgEdit increase from 4.36 to 4.60 and a 24.9% gain on object isolation; a second editor improved 7.8%. These are benchmark gains from self-distillation, not a guarantee against editing errors.",
    "why_it_matters": "A frozen internal critic rejected edits that looked plausible but missed the request or damaged preserved content.",
    "limitations": [
      "These are benchmark gains from self-distillation, not a guarantee against editing errors."
    ],
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        "text": "A frozen internal critic rejected edits that looked plausible but missed the request or damaged preserved content.",
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        "qualification": "These are benchmark gains from self-distillation, not a guarantee against editing errors."
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    "tags": [
      "image editing",
      "self-distillation",
      "reward verification"
    ],
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    "corrections": []
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  "sources": [
    {
      "source_id": "source-2026-10-10-004",
      "title": "arXiv preprint 2610.12469, original v1",
      "publisher": "arXiv / submitting research authors",
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      "published_at": "2026-10-08T13:59:58.000-04:00",
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    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "The Image Editor Became Its Own Strictest Critic",
    "publisher": "The Machine Press",
    "published_at": "2026-10-10T09:00:00.000-04:00",
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