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Anthropic · model release

Claude Fable 5.2 and Mythos 5.2

Anthropic releases Fable 5.2 and Mythos 5.2, its latest top models, faster and cheaper than 5.1.

In detail

Anthropic released Claude Fable 5.2 and Claude Mythos 5.2, the same model with different safeguards. It said they generate output up to 30% faster than 5.1 and cost $8 and $40 per million tokens, with an optional fast mode.

Sources

  1. Introducing Claude Fable 5.2 and Claude Mythos 5.2 · Anthropic · Primary source
  2. Claude Developer Platform release notes · Anthropic · Primary source

Last checked 11 November 2026.

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