Anthropic released Fable 5.1 generally; identical Mythos 5.1, with looser safeguards, is gated to vetted cyber and life-sciences users. Frontier access now splits by user, not by model. If vetted, apply for trusted access now.
Story 5 of 5 from Issue #034
Anthropic ships Claude Fable 5.1 and a gated twin, Mythos 5.1
Issue #034 · Story 5 of 5
Story 5/5 of Issue #034.
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