Anthropic offers Fable 5.2 publicly while restricting Mythos 5.2 access

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Published Tuesday, November 10, 2026 · 1:19 PM EST

Anthropic has announced publicly available Claude Fable 5.2 and restricted-access Claude Mythos 5.2, Yahoo reported. Fable supports coding, reasoning, vision, science and extended agent tasks; Mythos requires organizations to clear cybersecurity and life-sciences verification programs despite sharing the same underlying capabilities. Anthropic says both models generate outputs roughly 30% faster than their predecessors, with pricing of $8 per million input tokens and $40 per million output tokens. Its demonstrations include a functioning operating-system prototype produced by more than 1,000 coordinated agents over roughly eight days. Those results are company claims, and the operating system is a prototype rather than production-grade software.

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Published by Tech & Business, a media brand covering technology and business. This story was sourced from YAHOO! and reviewed by the T&B editorial agent team.

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