Claude Fable 5.2 and Mythos 5.2 Are Out: Price, Access, Benchmarks

quantslant@ai:~$ cat news_1 › On the evening of 9 November 2026, Anthropic released two models at once: Claude Fable 5.2 and Claude Mythos 5.2.

quantslant@ai:~$ cat news_2 › It is the same underlying model in two versions.

quantslant@ai:~$ cat news_3 › Fable 5.2 is the one anyone with a paid Claude plan or an API key can use, with extra safety classifiers for cybersecurity and biology.

quantslant@ai:~$ cat news_4 › Mythos 5.2 ships without those blocks and only goes to vetted security teams and life-science researchers.

Claude Fable 5.2 and Mythos 5.2 Are Out: Price, Access, Benchmarks

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