Anthropic Splits Its Most Powerful Model Into Public and Restricted Tiers With Fable 5 and Mythos 5
the deep dive [Unofficial]
June 9, 2026
Anthropic today released two versions of its most powerful model yet, splitting the same underlying AI into a hardened public release and a restricted variant earmarked for vetted users. Claude Fable 5 goes to the general market. Claude Mythos 5 goes first to the U.S. government. The distinction between the two products isn’t capability, but […]
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