# Gemini 3.1 Pro Preview — price & specs

Source: https://modelbank.ai/models/gemini-3.1-pro-preview · updated 2026-11-12 · ModelBank

| Field | Value |
|---|---|
| Vendor | Google |
| Input price | $2 / 1M tokens |
| Output price | $12 / 1M tokens |
| Cached input | $0.2 / 1M tokens |
| Context window | 1,048,576 tokens |
| Max output | 65,536 tokens |
| Input modalities | audio,file,image,text,video |
| Reasoning / tool use | yes / yes |
| Intelligence / coding index | — / 68.8 |
| Released | 2026-02-19 |
| Retirement date | none announced |

## About

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...

## Price history

- 2026-09-24: $2 in / $12 out


JSON: https://modelbank.ai/api/v1/models/gemini-3.1-pro-preview