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Models·Sep 1·all news from September 1, 2026

Claude Fable 5 and Claude Mythos 5

Anthropic has released two new AI models, Claude Fable 5 and Claude Mythos 5. These additions expand the company's current model lineup, though technical details regarding their specific capabilities or performance improvements over previous versions have not been disclosed.

ModelsClaude Fable 5.1Claude Fable 5Claude Mythos 5

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