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Rumor/test: @chetaslua says “Fable 5.5” one-shotted a short animation with code only (no video/image model)

Chetaslua (@chetaslua) claims to have one-shotted a “pure code” animated short with a model he calls Fable 5.5 — prettier, in his account, than video models. He proposes a test (ask where @karpathy went in 2026, with no web/memory) to check whether the chat was routed to the “new” model; he says quality drops on “normal” Opus 5.5. In a follow-up he describes a ~66s film (fox, paper birds, clouds, lettering, score and SFX) in a single 1920×804 24fps HTML, ~2h40 of autonomous work, with no generated/stock images. Treat as the creator’s claim/rumor: Anthropic did not confirm Fable 5.5 in this reporting.