Anthropic Launches Claude Fable 5.1 with Better Coding and Cheaper Cache
Scobleizer · x · 2026-09-02
Anthropic has released Claude Fable 5.1 and Claude Mythos 5.1. Piced the same as Fable 5, the new model offers 75% cheaper API cache reads. Fable 5.1 is optimized for coding and knowledge work, capable of progressing further in long tasks before needing input, with improved stuck-state reporting and a more natural writing style.
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