Gemini 3.1 Pro Preview Custom Tools vs Gemini 3 Flash Preview
Gemini 3 Flash Preview is cheaper on output tokens. Choose Gemini 3.1 Pro Preview Custom Tools or Gemini 3 Flash Preview based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Gemini 3.1 Pro Preview Custom Tools | Gemini 3 Flash Preview |
|---|---|---|
| Provider | Neon | Neon |
| Input / 1M tokens | $2.00 | $0.50 |
| Output / 1M tokens | $12.00 | $3.00 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | No | No |
| Released | Feb 2026 | Dec 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.