GPT-4o (Aug '24) vs GPT-5.3 Codex (Xhigh)

GPT-4o (Aug '24) vs GPT-5.3 Codex (Xhigh). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

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-4o (Aug '24)GPT-5.3 Codex (Xhigh)Difference
Intelligence (higher is better)7.732.5+322.1% GPT-5.3 Codex (Xhigh) is 4.2× more intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)4.59s58.41s+1172.5% GPT-5.3 Codex (Xhigh) is 1172.5% slower
Price per 1M tokens (in / out)$2.50 / $10.0$1.75 / $14.0
Input modalitiesText, ImageText, Image
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-4o-2024-08-06/gpt-5-3-codex · Markdown: /api/v1/compare/gpt-4o-2024-08-06/gpt-5-3-codex?format=md · llms.txt · agent skill