Gemini 2.5 Flash (Reasoning) vs GPT-5.1 Codex mini (High)

Gemini 2.5 Flash (Reasoning) vs GPT-5.1 Codex mini (High). 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 2.5 Flash (Reasoning)GPT-5.1 Codex mini (High)Difference
Intelligence (higher is better)13.120.4+55.7% GPT-5.1 Codex mini (H… is 55.7% more intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)20.54s10.10s−50.8% GPT-5.1 Codex mini (H… is 50.8% faster
Price per 1M tokens (in / out)$0.30 / $2.50$0.25 / $2.00
Input modalitiesText, Image, Speech, VideoText, Image
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-2-5-flash-reasoning/gpt-5-1-codex-mini · Markdown: /api/v1/compare/gemini-2-5-flash-reasoning/gpt-5-1-codex-mini?format=md · llms.txt · agent skill