Anthropic Rolls Out Its “Most Dangerous” Model, But Calls It Fable and Makes It Safer

First reported by N12 · Jun 10, 2026

What happened

Anthropic launched Claude Fable 5, the public version of its Mythos model, through the Claude API and Enterprise plans. The company said the model includes strict safety limits in sensitive areas such as cyber, biology, and chemistry, and that it blocks those requests and falls back to Claude Opus 4.8. The model costs twice as much as Opus 4.8 and comes as Anthropic prepares for a possible IPO.

Summary translated & synthesized from the sources below by baba. Read each original for the full report.

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N12Center · HebrewJun 10, 2026

Anthropic Rolls Out Its “Most Dangerous” Model, But Calls It Fable and Makes It Safer

MakoCenter · HebrewJun 10, 2026

Anthropic Releases Its “Most Dangerous” Model, But Calls It Fable and Makes It Safer

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