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Anthropic's Fable 5.2 Cuts Prices 20%, Runs Faster, and Blocks Less

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Anthropic released Fable 5.2 and Mythos 5.2 on November 9, its newest top-tier models built on a shared underlying system. Standard pricing for input and output tokens fell 20 percent compared with Fable 5.1, while outputs run up to 30 percent faster at the same effort level. Fable 5.2 also trips its safety classifiers 55 percent less often, with cybersecurity-related blocks down 60 percent. Mythos 5.2 remains limited to vetted researchers and enterprise customers in specific verification programs, while Fable 5.2 is the version most users will access.

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