OpenAI: GPT-5.2-Codex
openai/gpt-5.2-codex
Context: 400,000In: $1.75/1MOut: $14.00/1MUpdated 2026-10-04
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
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% | #20 |
| godotgamedev | 1142 | 47.8% | #24 |
| mobileapps | 1087 | 46.6% | #40 |
| webapps | 1043 | 39.6% | #38 |
| fullstack | 991 | 37.2% | #41 |