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

Anthropic released Fable 5.2 and Mythos 5.2, which share one underlying model with different safeguards. Fable is broadly available, while Mythos is limited to vetted cybersecurity and life sciences organizations; both cost $8 per million input tokens and $40 per million output tokens, down from $10 and $50. Anthropic reports Fable 5.2 scored 49.1% on the FrontierCode 2.0 benchmark, up from 32.4% for Fable 5.1, and that output generation is up to 30% faster.

Why it matters: The combination of better coding performance and a 20% price cut could make long-running AI agents for software migrations and engineering work economically viable for enterprise teams.