GPT-5.1
GPT-5.1 by OpenAI — specifications, pricing and published benchmark scores, with community links.
| Organization | OpenAI |
|---|---|
| Released | 2025-11 |
| License | Proprietary |
| Open weights | No |
| Context window | 400,000 tokens |
| Modality | text, image |
| Input price | $1.25 / 1M |
| Output price | $10 / 1M |
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