OpenAI
GPT-5.1 Codex (high)
GPT-5.1-Codex is a version of GPT-5.1 optimized for agentic coding tasks in Codex or similar environments.
Introducing GPT-5Model Snapshot
TypeLanguage
ReleaseNov 12, 2025
Context400,000
Tagsfile-input, tool-use, reasoning, vision
Overall
Rank #50 across 526
43.1
Coding
Rank #78 across 436
36.6
Blended Price
Rank #289 across 357
$3.44/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 Speed182.1 tok/s
First Token2.83s
Max Output128,000
Pricing
Blended$3.44/M
Input$1.25/M
All Benchmarks
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 43.1 | #50 |
| Artificial Analysis Coding Index | coding | 36.6 | #78 |
| Artificial Analysis Math Index | math | 95.7 | #8 |
| MMLU-Pro | reasoning | 86.0% | #23 |