OpenAI: GPT-5.2-Codex
openai/gpt-5.2-codex
Context: 400,000In: $1.75/1MOut: $14.00/1MUpdated 2026-08-05
GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
Intelligence
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Coding
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Agentic
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Metric profile
Trend over time
Intelligence
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Coding
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Agentic
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Only 1 snapshot so far (data refreshes daily) — the trend line appears after the 2nd snapshot.
Classic evals (curated from model cards)
OpenAI GPT — manually maintained, may lag releases
MMLU-Pro
79.6%
GPQA Diamond
81.5%
HumanEval
96.8%
MATH-500
93%
Design Arena (ELO by category)
| Category | ELO | Win rate | Rank |
|---|---|---|---|
| androidnative | 1176 | 47.5% | #19 |
| mobileapps | 1149 | 46.4% | #27 |
| godotgamedev | 1142 | 47.8% | #19 |
| webapps | 1099 | 39.5% | #29 |
| fullstack | 1034 | 37% | #31 |