RWT
9.5 score
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9.5 score
64.5 score
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80.3 score
95.5 score
80.3 score
88.0 score
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56.3 score
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89.2 score
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Anthropic is releasing Claude Fable 5, its first Mythos-class model available to the public. The model comes with guardrails that block responses in high-risk areas like cybersecurity and biology.

Techmeme
Anthropic’s Mythos has been the subject of recently, especially since the company itself admitted that it is highly capable and can cause harm, including cyberattacks. Last month, the company released Fable 5, the first public-facing version of its Mythos-class model, to a select group of enterprise customers, but with guardrails to contain the full range of its cyber capabilities. The relaxation is seen to be a sign of easing tensions between Anthropic and the Donald Trump administration. Anth

Techmeme
Last cached leaderboard date: June 9, 2026. This model page is generated from the AskClash LLM Leaderboard cache and linked from the live leaderboard.