Model comparison
GPT-5.1 (2025-11-13) vs GPT-5 Codex
Price history, scores and specs for both models, line by line. Every value shows where it came from and when we last confirmed it.
OpenAI
GPT-5.1 (2025-11-13)
GPT model for general reasoning, writing, coding, and tool-assisted tasks.
OpenAI
GPT-5 Codex
GPT-5-Codex is a specialized version of GPT-5 optimized for software engineering and coding workflows.
Scores
Benchmarks, with source and date
| Measure | GPT-5.1 (2025-11-13) | GPT-5 Codex |
|---|---|---|
| Artificial Analysis Intelligence Index | Not checked yet | 24.9 |
How this works
One link, either order
This link stays the same whichever order you name the two models in, so you can share it as it is. A line appears only when at least one model has a value we confirmed from a source; values we have not confirmed are left out, never guessed. To add a third record of any type, use the open comparison. Read how we check facts.