Anthropic Releases Claude Fable 5.2 and Mythos 5.2 With Coding Gains and 20% Lower Prices

Anthropic launched Claude Fable 5.2 and Mythos 5.2, which share one underlying model but differ in safeguards. Fable is broadly available, while Mythos access is limited to vetted cybersecurity and life sciences organizations. Both are priced at $8 per million input tokens and $40 per million output tokens, down from $10 and $50, and Anthropic says output is up to 30% faster; Fable 5.2 scored 49.1% on the FrontierCode 2.0 benchmark versus 32.4% for Fable 5.1.

Why it matters: The lower per-token cost and stronger coding results could make long-running AI agents for software migrations and research economically viable for enterprise teams.