Anthropic releases Claude Fable 5, a safety-limited version of Mythos, at $10/$50 per million tokens
Anthropic released Claude Fable 5, the first publicly available version of its Mythos model, with built-in safety restrictions that automatically block high-risk queries in cybersecurity, biology, chemistry, and related fields. The model costs $10 per million input tokens and $50 per million output tokens, double the price of Claude Opus 4.8.