GPT-5.1 Codex mini (High) vs Mistral Small 4 (Reasoning)

GPT-5.1 Codex mini (High) vs Mistral Small 4 (Reasoning). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

OpenAIGPT-5.1 Codex mini (High)Not ranked · benchmark data missing
Intelligence
20.40
Total cost
-
MistralMistral Small 4 (Reasoning)On the open-weights frontier
Intelligence
11.30
Total cost
$42.5
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.

MetricGPT-5.1 Codex mini (High)Mistral Small 4 (Reasoning)Difference
Intelligence (higher is better)20.411.3−44.6% Mistral Small 4 (Reas… is 44.6% less intelligent
Total AA cost (lower is better)Not reported$42.50— not comparable
End-to-end time (lower is better)10.10s14.50s+43.6% Mistral Small 4 (Reas… is 43.6% slower
Price per 1M tokens (in / out)$0.25 / $2.00$0.15 / $0.60
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-5.1 Codex mini (High): what beats itMistral Small 4 (Reasoning): what beats it
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-1-codex-mini/mistral-small-4 · Markdown: /api/v1/compare/gpt-5-1-codex-mini/mistral-small-4?format=md · llms.txt · agent skill