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FrontierMath Tiers 1-3

Private v2 mathematics problems with Python tools. Earlier versions and Tier 4 are excluded.

ModelConfigurationResultTest date
GPT-6.1 SolGPT-6.1 Sol (max)93.7* %2026-09-29
Claude Opus 5.5Claude Opus 5.5 (max)91.2* %2026-09-22
GPT-6.1 TerraGPT-6.1 Terra (max)90.9* %2026-10-26
Claude Fable 5.1Claude Fable 5.1 (max)90.2* %2026-09-01
GPT-6 SolGPT-6 Sol (max)89.8* %2026-09-22
GPT-5.6 SolGPT-5.6 Sol (max)89.1* %2026-07-09

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* Provisional data