Across 40 shared benchmarks, Qwen3.7 Max scores higher on 8 and Qwen3.8 Max Preview on 32. The widest gap is TauBench V3 - Banking, where Qwen3.8 Max Preview scores 51.3 against 11.8. Qwen3.8 Max Preview is the cheaper of the two on tracked API pricing ($2.00 against $2.50 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.