Gemini 3.1 Pro Preview vs Step 3.5 Flash 2603

Gemini 3.1 Pro Preview vs Step 3.5 Flash 2603. A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

Verdict

Comparison incomplete

A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

MetricGemini 3.1 Pro PreviewStep 3.5 Flash 2603Difference
Intelligence (higher is better)29.717.0−42.8% Step 3.5 Flash 2603 is 42.8% less intelligent
Total AA cost (lower is better)$1,935.39Not reported— not comparable
End-to-end time (lower is better)24.90s21.03s−15.5% Step 3.5 Flash 2603 is 15.5% faster
Price per 1M tokens (in / out)$2.00 / $12.0$0.10 / $0.30
Input modalitiesText, Image, Speech, VideoText
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-3-1-pro-preview/step-3-5-flash · Markdown: /api/v1/compare/gemini-3-1-pro-preview/step-3-5-flash?format=md · llms.txt · agent skill