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Anthropic releases Claude Fable 5.1 and Mythos 5.1
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Anthropic released Claude Fable 5.1 for general use and Mythos 5.1 for trusted cybersecurity and life sciences programs. The update focuses on stronger coding and knowledge work, lower friction safeguards, and enterprise privacy improvements.
Sources: https://www.anthropic.com/claude-fable-and-mythos-5-1https://techcrunch.com/2026/09/01/anthropics-new-fable-release-is-cheaper-less-restrictive/
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