GPT-5.1-Codex
OpenAI's reasoning coding model with multimodal input and a 400K-token context for software tasks.
Design Arena
Design Arena ranks models on real-world front-end and design tasks — websites, UI components, data viz, SVG and more — through head-to-head human votes, scored as an ELO rating.| Category | ELO | Win rate | Rank |
|---|---|---|---|
| UI component | 1258 | 60.0% | #33 |
| Data viz | 1231 | 55.9% | #41 |
| Mobileapps | 1191 | 53.4% | #20 |
| Website | 1176 | 56.1% | #70 |
| Code | 1170 | 54.6% | #68 |
Pricing
per 1M tokensInput$1.25 /1M
Output$10 /1M
Cache read$0.13 /1M
Web search$0.01
Model Description
GPT-5.1-Codex is a specialized version of GPT-5.1 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
Author
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Author
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