Gemini 3.1 Pro (Preview Custom Tools) vs Gemma 4 31B Garnet
Gemma 4 31B Garnet is cheaper on output tokens, while Gemini 3.1 Pro (Preview Custom Tools) offers a larger context window. Choose Gemini 3.1 Pro (Preview Custom Tools) or Gemma 4 31B Garnet 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) | Gemma 4 31B Garnet |
|---|---|---|
| Provider | NanoGPT | NanoGPT |
| Input / 1M tokens | $2.00 | $0.31 |
| Output / 1M tokens | $12.00 | $0.31 |
| Context window | 1M | 262K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Feb 2026 | May 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.