Claude Fable 5.2 keeps butchering jokes: can't keep premise or punchline while rewriting

ivan_bezdomny · x · 2026-11-10

Developer ivanbezdomny tested Claude Fable-5.2 / Opus-5.5 on what he calls the hardest problem he knows: taking a decent joke premise and making it funnier. The model consistently fails — not just failing to write better jokes, but butchering the original, losing both the premise and the punchline even when explicitly instructed to keep them, and unable to write a prompt or process for itself that works. A notable observation on the limits of creative rewriting while preserving intent.

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