Across 14 shared benchmarks, Agnes 2.5 Pro Alpha scores higher on 4 and Quasar 438B on 10. The widest gap is OmniScience Non-Hallucination, where Quasar 438B scores 78.6 against 11.9. Agnes 2.5 Pro Alpha is the cheaper of the two on tracked API pricing ($0.45 against $0.60 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, direct), otherwise the lowest tracked offer.