Anthropic's Claude Fable 5.2 Builds Working OS From Empty Folder

Anthropic's new frontier models formalized Fermat's Last Theorem in 30 hours, scored 49.1% on FrontierCode 2.0, and cut prices 20%.

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Timeline · 2 reports

2026-11-09 19:09 · AlphaSignal
Anthropic's Claude Fable 5.2 Tops Cognition's Coding Benchmark at a Third of the Cost
2026-11-09 18:57 · AlphaSignal
Anthropic's Claude Fable 5.2 Builds a Working OS From an Empty Folder

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Anthropic launches Claude Fable 5.2 and Mythos 5.2 models — Anthropic (X)
Claude Code settings files expose thousands of secrets on public GitHub — Ars Technica AI
Claude Code ecosystem expands with open-source tools, agent skills and token-tracking guides — DEV Community — AI
Anthropic launches Claude Personal Finance with read-only bank access in the US — Engadget
Anthropic must face lawsuit over Claude subscription marketing — Economic Times Tech
Anthropic says Claude designed working electronic prototypes from start to finish — Anthropic News
Anthropic simplifies repo setup for Claude Code cloud sessions — Anthropic (X)
IBM to Integrate Anthropic's Claude Mythos Cyber Reasoning into Concert — Mixture of Experts (IBM)

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