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PublishedSeptember 1, 2026 at 10:01 PM
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Anthropic launches Claude Fable 5.1 and says it’s up to 45 percent cheaper for agentic work

Publisher summary· verbatim
Anthropic says its newest AI models, Fable 5.1 and Mythos 5.1, address criticisms from customers about price, data retention, and overzealous safeguards. The company claims Claude Fable 5.1 offers stronger performance than Fable 5, but costs around 25 percent less typically and up to 45 percent less
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