{
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  "type": "post",
  "slug": "fable-jacobi-counterexample-eval",
  "title": "Fable: A New Eval Is an Artifact Specialists Can Verify",
  "description": "Fable and a counterexample to the Jacobi hypothesis signal a new eval category: a model is judged by an artifact that specialists can independently verify.",
  "status": "published",
  "published_at": "2026-07-22",
  "topics": [],
  "source_urls": [
    "https://x.com/__alpoge__/status/2079028340955197566"
  ],
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    "json": "https://newruntime.com/posts/fable-jacobi-counterexample-eval.json"
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  "source_format": "markdown"
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