OpenAI
GPT-5.2 Codex (xhigh)
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....
Introducing GPT-5Model Snapshot
ReleaseDec 11, 2025
Context400,000
Overall
Rank #55 across 566
40.1
Coding
No rank
n/a
Blended Price
Rank #309 across 371
$4.81/M
Strength Profile
Percentile score by analysis domain.
* Cost is inverted: lower input, output, and blended prices rank higher.
Benchmark Percentiles
Higher bars mean stronger relative placement.
Model Details
Runtime
Output Speed125.5 tok/s
First Token1.07s
Max Output128,000
Pricing
Blended$4.81/M
Input$1.75/M
All Benchmarks
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 40.1 | #55 |
| LiveBench Mathematics | math | 88.8% | #15 |
| GPQA | reasoning | 89.9% | #31 |
| Humanity's Last Exam | reasoning | 33.5% | #39 |
| SciCode |