GPT-5.3 Codex (Xhigh) vs Mistral Small 4 (Reasoning)

GPT-5.3 Codex (Xhigh) 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-5.3 Codex (Xhigh)Not ranked · benchmark data missing
Intelligence
32.50
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-5.3 Codex (Xhigh)Mistral Small 4 (Reasoning)Difference
Intelligence (higher is better)32.511.3−65.2% Mistral Small 4 (Reas… is 65.2% less intelligent
Total AA cost (lower is better)Not reported$42.50— not comparable
End-to-end time (lower is better)62.23s14.50s−76.7% Mistral Small 4 (Reas… is 76.7% faster
Price per 1M tokens (in / out)$1.75 / $14.0$0.15 / $0.60
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-5.3 Codex (Xhigh): what beats itMistral Small 4 (Reasoning): what beats it
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-3-codex/mistral-small-4 · Markdown: /api/v1/compare/gpt-5-3-codex/mistral-small-4?format=md · llms.txt · agent skill