Comparing 1 model
| OpenAI: GPT-5.1-Codex-Max | |
|---|---|
| Maker | Openai |
| Context window | 400K |
| Max output | 128K |
| Input / 1M | $2.50 |
| Output / 1M | $20 |
| Cache read / 1M | $0.25 |
| Cache write / 1M | — |
| 1M in + 1M out | $22.50 |
| Takes | text, image |
| Returns | text |
| Tools | yes |
| Reasoning | always on · xhigh, high, medium, low |
| Open weights | no |
| Released | 2025-12-04 |
| Knowledge cutoff | — |
| Retires | — |