DeepSeek-V4.1-Flash vs GPT-5.5
25 SHARED BENCHMARKSAcross 25 shared benchmarks, DeepSeek-V4.1-Flash scores higher on 9 and GPT-5.5 on 16. The widest gap is Program Bench, where GPT-5.5 scores 70.8 against 20.3. DeepSeek-V4.1-Flash is the cheaper of the two on tracked API pricing ($0.30 against $5.00 per million input tokens).
DEEPSEEKVSOPENAI25 SHARED9–16 HEAD-TO-HEAD
terminalbenchV4026.814.6
Best tracked score per model per benchmark (default configuration; source-attributed). ↓ marks lower-is-better metrics. Open either model for its full surface, provenance and pricing. Quoted rates are the price-setter row we currently track for each model — its direct or vendor-official listing where one exists (direct, direct), otherwise the lowest tracked offer.