GPT-5.3 Codex (Xhigh) vs Mistral Medium 3.5

GPT-5.3 Codex (Xhigh) vs Mistral Medium 3.5. 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 Medium 3.5Off the frontier
Intelligence
14.20
Total cost
$1264
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 Medium 3.5Difference
Intelligence (higher is better)32.514.2−56.3% Mistral Medium 3.5 is 56.3% less intelligent
Total AA cost (lower is better)Not reported$1,263.80— not comparable
End-to-end time (lower is better)62.23s17.96s−71.1% Mistral Medium 3.5 is 71.1% faster
Price per 1M tokens (in / out)$1.75 / $14.0$1.50 / $7.50
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-5.3 Codex (Xhigh): what beats itMistral Medium 3.5: 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-medium-3-5 · Markdown: /api/v1/compare/gpt-5-3-codex/mistral-medium-3-5?format=md · llms.txt · agent skill