Across 30 shared benchmarks, Claude Fable 5 scores higher on 21 and Gemini 3.8 Flash on 9. The widest gap is GDP (Surge AI), where Claude Fable 5 scores 87.1 against 35. Gemini 3.8 Flash is the cheaper of the two on tracked API pricing ($0.75 against $10.00 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, direct), otherwise the lowest tracked offer.