Across 41 shared benchmarks, GPT-5.5 scores higher on 20 and Qwen3.8 Max Preview on 21. The widest gap is AA-Omniscience, where GPT-5.5 scores 20.5 against 3.4. Qwen3.8 Max Preview is the cheaper of the two on tracked API pricing ($2.00 against $5.00 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 (direct, alibaba-official), otherwise the lowest tracked offer.