Anthropic releases Claude Fable 5.2

Tag "Anthropic releases Claude Fable 5.2" — all articles

102026-11Anthropic Releases Claude Fable 5.2, Topping GPT-6 on Coding BenchmarksOn Nov 10, Anthropic released two models, Claude Fable 5.2 and Claude Mythos 5.2, claiming up to 30% faster output and 20% lower cost. On the agentic coding benchmark FrontierCode 2.0, Fable 5.2 scored 49.1%, beating GPT-6 Astra's 42.8%. Anthropic also demonstrated long-horizon collaboration, coordinating over 1,000 agents over eight days to build a bootable operating system.IT之家、Simon Willison