Anthropic’s Claude Fable 5 is a version of Mythos the public can access today
TechCrunch·June 9, 2026
Anthropic is releasing Claude Fable 5, a publicly accessible version of its Mythos-class model. This model is equipped with guardrails that restrict responses in sensitive areas, including cybersecurity and biology. The guardrails are designed to prevent the model from providing potentially harmful information. Claude Fable 5 is Anthropic's first Mythos-class model available for public use.
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