GPT-5.3 Codex (Xhigh) vs GPT-5 mini (High)

GPT-5.3 Codex (Xhigh) vs GPT-5 mini (High). 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
-
OpenAIGPT-5 mini (High)Off the frontier
Intelligence
16.80
Total cost
$189
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)GPT-5 mini (High)Difference
Intelligence (higher is better)32.516.8−48.3% GPT-5 mini (High) is 48.3% less intelligent
Total AA cost (lower is better)Not reported$188.66— not comparable
End-to-end time (lower is better)60.49s58.72s−2.9% GPT-5 mini (High) is 2.9% faster
Price per 1M tokens (in / out)$1.75 / $14.0$0.25 / $2.00
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-5.3 Codex (Xhigh): what beats itGPT-5 mini (High): what beats it
Matchup

Compare something else

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