Head to head
GPT-5.5 Pro vs GPT-5.4 nano
On a blended workload of one million input tokens and three million output tokens, GPT-5.4 nano is 144.3× cheaper than GPT-5.5 Pro.
| GPT-5.5 Pro | GPT-5.4 nano | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / MTok | $30 | $0.2 |
| Output / MTok | $180 | $1.25 |
| Cache read / MTok | — | $0.02 |
| Context window | — | — |
| Blended 1M in + 3M out | $570.00 | $3.95 |
| Status | ga | ga |