Google: Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...
Everything else
| Max output | 66K |
|---|---|
| Input / 1M | $2 |
| Output / 1M | $12 |
| Cache read / 1M | $0.2 |
| Cache write / 1M | $0.375 |
| 1M in + 1M out | $14 |
| Takes | audio, file, image, text, video |
| Returns | text |
| Tools | yes |
| Reasoning | always on · high, medium, low |
| Open weights | no |
| Released | 2026-02-19 |
| Knowledge cutoff | — |
| Retires | — |
| Catalog id | google/gemini-3.1-pro-preview |
Benchmarks
| source | epoch |
|---|---|
| gpqa | 0.941 |
| gpqaStderr | 0.017 |
| frontierMath | 0.369 |
| frontierMathStderr | 0.028 |
| aime | 0.956 |
| aimeStderr | 0.031 |
| simpleQA | 0.773 |
| simpleQAStderr | 0.0133 |
Benchmark scores by Epoch AI, CC BY 4.0.
Using it
In 00, this model is picked per agent — and per tier, so the model that answers your customers need not be the one that writes your code. Get 00.