Across 31 shared benchmarks, Qwen3.7 Plus Preview scores higher on 5 and Qwen3.8 Flash Next on 26. The widest gap is DeepSWE 1.1, where Qwen3.8 Flash Next scores 58.7 against 16.5. Qwen3.8 Flash Next is the cheaper of the two on tracked API pricing ($0.15 against $0.40 per million input tokens).
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 (alibaba-official, alibaba-official), otherwise the lowest tracked offer.