OpenAI: GPT-5.1-Codex-Mini
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
Everything else
| Max output | 128K |
|---|---|
| Input / 1M | $0.25 |
| Output / 1M | $2 |
| Cache read / 1M | $0.03 |
| Cache write / 1M | — |
| 1M in + 1M out | $2.25 |
| Takes | image, text |
| Returns | text |
| Tools | yes |
| Reasoning | optional · high, medium, low |
| Open weights | no |
| Released | 2025-11-13 |
| Knowledge cutoff | — |
| Retires | — |
| Catalog id | openai/gpt-5.1-codex-mini |
Using it
In 00, this model is picked per agent — and per tier, so the model that answers your customers need not be the one that writes your code. Get 00.