Head to head
GPT-5 Pro vs o3-pro
On a blended workload of one million input tokens and three million output tokens, o3-pro is 1.4× cheaper than GPT-5 Pro.
| GPT-5 Pro | o3-pro | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / MTok | $15 | $20 |
| Output / MTok | $120 | $80 |
| Cache read / MTok | — | — |
| Context window | — | 200,000 |
| Blended 1M in + 3M out | $375.00 | $260.00 |
| Status | ga | ga |