Anthropic 發布「高風險」 Mythos 模型，首次公開

anthropic released claude fable 5, the first broadly available model from its 'mythos' class, which the company previously withheld due to risks associated with its advanced cybersecurity capabilities. the release relies on new input-specific safeguards that restrict responses in sensitive domains like biology, with 95% of sessions processing natively without triggering fallbacks to the claude opus 4.8 model. pricing is set at $10 per million input tokens and $50 per million output tokens, double the rate of claude opus 4.8. concurrently, anthropic introduced claude mythos 5, an equivalent model with lifted safeguards available through a private trusted-access program for select enterprise partners.