Head to head
Gemini 3.1 Pro Preview vs GPT-5.3 Codex
On a blended workload of one million input tokens and three million output tokens, Gemini 3.1 Pro Preview is 1.2× cheaper than GPT-5.3 Codex.
| Gemini 3.1 Pro Preview | GPT-5.3 Codex | |
|---|---|---|
| Provider | OpenAI | |
| Input / MTok | $2 | $1.75 |
| Output / MTok | $12 | $14 |
| Cache read / MTok | $0.2 | $0.175 |
| Context window | — | — |
| Blended 1M in + 3M out | $38.00 | $43.75 |
| Status | preview | ga |