GPT-5.2 Codex (Xhigh) vs o3-mini

GPT-5.2 Codex (Xhigh) vs o3-mini. A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

OpenAIGPT-5.2 Codex (Xhigh)Not ranked · benchmark data missing
Intelligence
28.50
Total cost
-
OpenAIo3-miniNot ranked · benchmark data missing
Intelligence
12.50
Total cost
-
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-5.2 Codex (Xhigh)o3-miniDifference
Intelligence (higher is better)28.512.5−56.1% o3-mini is 56.1% less intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)151.19s8.88s−94.1% o3-mini is 94.1% faster
Price per 1M tokens (in / out)$1.75 / $14.0$1.10 / $4.40
Input modalitiesText, ImageText
Open this matchup in the interactive pickerGPT-5.2 Codex (Xhigh): what beats ito3-mini: what beats it
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-2-codex/o3-mini · Markdown: /api/v1/compare/gpt-5-2-codex/o3-mini?format=md · llms.txt · agent skill