User claims DeepSeek V4 Pro is mis-trained: cheaper Flash beats it

karminski3 · x · 2026-08-18

A Chinese user reports (unconfirmed) that in the DeepSeek V4 lineup, the much cheaper V4 Flash outperforms V4 Pro on reasoning, and the lower-effort V4 Pro High beats Pro Max. V4 Pro still writes better prose, but trails Opus 4.6 by a wide margin. The poster also asks for recommendations on writing benchmarks.

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