GPT-5.1 Codex (High) vs o3
GPT-5.1 Codex (High) vs o3. 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.
| Metric | GPT-5.1 Codex (High) | o3 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 23.7 | 20.2 | −14.8% o3 is 14.8% less intelligent |
| Total AA cost (lower is better) | Not reported | Not reported | — not comparable |
| End-to-end time (lower is better) | 12.01s | 11.00s | −8.4% o3 is 8.4% faster |
| Price per 1M tokens (in / out) | $1.25 / $10.0 | $2.00 / $8.00 | |
| Input modalities | Text, Image | Text, Image |
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-1-codex/o3 · Markdown: /api/v1/compare/gpt-5-1-codex/o3?format=md · llms.txt · agent skill