Unverified leak claims Fable 5.5 generates full animation in one shot, beating Opus 5.5

FinanceYF5 · x · 2026-11-03

A viral post claims Fable 5.5 generated a complete animation purely with code in a single pass, reportedly beating regular Opus 5.5 on the same prompt, with Fable 5.1 faring worse. The author offers verification methods, including asking the model with web/memory disabled where Karpathy went in 2026. The model remains unconfirmed by Anthropic.

Related event: Leaked Claude checkpoint "Fable 5.5" reportedly generates animations in pure code, partly debunked(8 posts)→

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