Google: Gemini 3.1 Pro Preview vs OpenAI: GPT-5 Pro
Google: Gemini 3.1 Pro Preview is cheaper on output tokens, while Google: Gemini 3.1 Pro Preview offers a larger context window. Choose Google: Gemini 3.1 Pro Preview or OpenAI: GPT-5 Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Google: Gemini 3.1 Pro Preview | OpenAI: GPT-5 Pro |
|---|---|---|
| Provider | Kilo Gateway | Kilo Gateway |
| Input / 1M tokens | $2.00 | $15.00 |
| Output / 1M tokens | $12.00 | $120.00 |
| Context window | 1M | 400K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Feb 2026 | Oct 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.