Fable 5.2 released: sweeps agentic coding, cybersecurity and robotics benchmarks

Money_Ad_3945 · reddit · 2026-11-10

A Reddit post shares the Fable 5.2 release with a benchmark table comparing it to Fable 5.1, Opus 5.5, GPT-6 Astra and Gemini 4 Carbon. Fable 5.2 leads nearly across the board: FrontierSWE v2 69.9%, Terminal-Bench-Science 74.6%, CVE Rediscovery 89.6%, OSWorld 2.1 89.3%, RoboDoj Sim 64.9% (vs 27.6% for 5.1), Humanity's Last Exam 74.2%, and Remote Labor Index 41.3% (vs 17.9%). Its only notable loss is AutomationBench (53.9%) to Gemini 4 Carbon.

Related event: Claude Fable 5.2 launches, benchmarks beat Opus 5.5 and GPT-6 across the board(6 posts)→

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