GPT-5.1
GPT-5.1 — OpenAI multimodal model with an Intelligence Index of 37, a 512K-token context window and a blended price of $0.77/1M tokens.
Key specifications
| Intelligence Index | 37 |
|---|---|
| Coding Index | 49.4 |
| Agentic Index | 21 |
| Arena Elo | — |
| Context window (K tokens) | 512 |
| Blended price ($/1M tokens) | 0.8 |
| Output speed (tokens/s) | 106 |
About GPT-5.1
The GPT-5.1 is a multimodal model from OpenAI with an Intelligence Index of 37.0, a Coding Index of 49.4 and a 512K-token context window. It runs at a blended price of $0.77 per million tokens and generates about 106 tokens/s. It is proprietary api. Leaderboard indices are a strong signal but only part of real-world quality, which also depends on tool use, latency and task fit.
The comparisons below show how GPT-5.1 stacks up against the alternatives people most often weigh against it, with the specific numbers laid out side by side.
Frequently asked questions
Is the GPT-5.1 any good?
GPT-5.1 — OpenAI multimodal model with an Intelligence Index of 37, a 512K-token context window and a blended price of $0.77/1M tokens.
What are the key specs of the GPT-5.1?
See the specification table above for the full breakdown.