441e85161ClaimAnthropic launched Claude Fable 5.2 and Claude Mythos 5.2 on November 9, 2026, targeting coding, reasoning, and AI agent tasksAgreeDisagree
441e85161ClaimAnthropic said Claude Fable 5.2 scored 51.4% at Max effort on Zapier's AutomationBench business automation test, behind Gemini 4 Carbon's score of 53.9%AgreeDisagree
441e85161ClaimAnthropic said during pre-release testing, 1,000 Fable 5.2 agents formalized the proof of Fermat's Last Theorem in Lean in 30 hours, compared to 26% completion in 18 hours by Opus 5.5AgreeDisagree
441e85161ClaimAnthropic said Claude Fable 5.2 scored 49.1% at Xhigh effort on the FrontierCode 2.0 agentic coding benchmark, leading GPT-6 Astra at 42.8% and Gemini 4 Carbon at 41.1%AgreeDisagree
441e85161ClaimIn a pre-release project, 1,000 Fable 5.2 subagents built an operating system over eight days that boots on a laptop, offers network access, and includes a Claude sidebarAgreeDisagree
441e85161ClaimArtificial intelligence systems are patient and listen to people in ways that humans often do notAgreeDisagree
441e85161ClaimSome people feel that artificial intelligence relates to them more than humans do because they can control artificial intelligence, whereas they cannot control a human personAgreeDisagree