---
title: Gemini 3.1 Pro Preview
description: Gemini 3.1 Pro Preview by Google — next-generation Gemini Pro with 2M context.
---

# Gemini 3.1 Pro Preview

**Key:** `gemini-3.1-pro-preview`  
**Provider:** [Google](/en/providers/google/)  
**Support:** `runnable`

## Capabilities

chat · reasoning · tools · vision

## Specifications

| Field | Value |
|-------|-------|
| Context window | 2 000 000 tokens |
| Input modalities | text · image · document |
| Output modalities | text |

## When to use

Preview of the next Gemini Pro generation. Use for evaluating the latest Google capabilities before they reach general availability. API contract is stable but model behaviour may evolve.

## Provider documentation

→ [Google Gemini models](https://ai.google.dev/gemini-api/docs/models)
