Head to head
GPT-5.5 Pro vs GPT-5.4 Pro
On a blended workload of one million input tokens and three million output tokens, GPT-5.4 Pro is line-ball with GPT-5.5 Pro.
| GPT-5.5 Pro | GPT-5.4 Pro | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / MTok | $30 | $30 |
| Output / MTok | $180 | $180 |
| Cache read / MTok | — | — |
| Context window | — | — |
| Blended 1M in + 3M out | $570.00 | $570.00 |
| Status | ga | ga |