Head to head
o1-pro vs GPT-5.5 Pro
On a blended workload of one million input tokens and three million output tokens, GPT-5.5 Pro is 3.4× cheaper than o1-pro.
| o1-pro | GPT-5.5 Pro | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / MTok | $150 | $30 |
| Output / MTok | $600 | $180 |
| Cache read / MTok | — | — |
| Context window | 200,000 | — |
| Blended 1M in + 3M out | $1,950 | $570.00 |
| Status | ga | ga |