Claude Fable 5.1 Launches with Better Benchmarks and 75% Cheaper Cache
Anthropic · youtube · 2026-09-02
Anthropic released Claude Fable 5.1, an upgrade to its most capable model class, excelling at complex, long-running tasks and scientific research. It sets a new standard across benchmarks and achieves similar or better results than Fable 5 at a much lower cost at reduced effort levels. The model is available everywhere. Notably, the cost of prompt cache reads has been reduced by 75%, while input and output pricing remains the same as Fable 5.
Related event: Anthropic Releases Fable 5.1 and Mythos 5.1 with 75% Cheaper Caching(174 posts)→
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