DeepSeek V4.1F tops Chinese models on FrontierMath Tier 4 at 46%

teortaxesTex · x · 2026-10-26

teortaxesTex notes that DeepSeek V4.1F-1017 is now the strongest Chinese model on Epoch's FrontierMath Tier 4 (v2) leaderboard, scoring 46% — on par with Qwen 3.8 Max (Aug 2) and Haiku 5.5.

Earlier DeepSeek versions scored far lower: V4-Flash 0731 at 24%, and both V4-Pro-0813 and V4.1-Flash (0910) at 27%. The author concludes DeepSeek has resumed hill-climbing on math. The leaderboard screenshots show 77 models tested, with frontier US models like GPT-6.1 Sol nearing 100%.

Related event: DeepSeek V4.1F Tops FrontierMath Tier 4 as Best Chinese Model(2 posts)→

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