Gemini 3.1 Pro Preview vs GPT-5 nano (Medium)

Gemini 3.1 Pro Preview vs GPT-5 nano (Medium). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

GoogleGemini 3.1 Pro PreviewOff the frontier
Intelligence
29.70
Total cost
$1935
OpenAIGPT-5 nano (Medium)Not ranked · benchmark data missing
Intelligence
12.50
Total cost
-
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 PreviewGPT-5 nano (Medium)Difference
Intelligence (higher is better)29.712.5−57.9% GPT-5 nano (Medium) is 57.9% less intelligent
Total AA cost (lower is better)$1,935.39Not reported— not comparable
End-to-end time (lower is better)25.04s37.40s+49.4% GPT-5 nano (Medium) is 49.4% slower
Price per 1M tokens (in / out)$2.00 / $12.0$0.05 / $0.40
Input modalitiesText, Image, Speech, VideoText, Image
Open this matchup in the interactive pickerGemini 3.1 Pro Preview: what beats itGPT-5 nano (Medium): what beats it
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/gpt-5-nano-medium · Markdown: /api/v1/compare/gemini-3-1-pro-preview/gpt-5-nano-medium?format=md · llms.txt · agent skill