Wed, Sep 2 12:01 AM

Anthropic releases Claude Fable 5.1 and Mythos 5.1, cutting cache read prices by 75%

TNW•Tue, Sep 1, 2026, 08:14 PM•2 min read

Anthropic has released Claude Fable 5. 1 and Mythos 5. 1, the same model with different safeguards, cutting cache read prices by 75% and reporting 52.

Source: [TNW](https://thenextweb.com/news/claude-fable-mythos-5-1-eu-ai-act-watermark-detection-api-private-preview)

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#tech #anthropic #claude #fable #mythos #cutting #cache #read #prices

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