OpenAI: o1-pro vs OpenAI: GPT-5.1 Chat
OpenAI: GPT-5.1 Chat is cheaper on output tokens, while OpenAI: o1-pro offers a larger context window. Choose OpenAI: o1-pro or OpenAI: GPT-5.1 Chat based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | OpenAI: o1-pro | OpenAI: GPT-5.1 Chat |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / 1M tokens | $150.00 | $1.25 |
| Output / 1M tokens | $600.00 | $10.00 |
| Context window | 200K | 128K |
| Parameters | — | — |
| Open weights | No | — |
| Released | Mar 2025 | — |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.