GPT-5.4 vs Qwen3.5 4B
22 SHARED BENCHMARKSAcross 22 shared benchmarks, GPT-5.4 scores higher on 21 and Qwen3.5 4B on 1. The widest gap is τ³-Bench, where GPT-5.4 scores 72.9 against 8.2. Qwen3.5 4B is the cheaper of the two on tracked API pricing ($0.03 against $2.50 per million input tokens).
OPENAIVSALIBABA22 SHARED21–1 HEAD-TO-HEAD
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.