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Google DeepMind·Gemini

Gemini 3.1 Pro Preview

The successor preview to Gemini 3 Pro, with a separate endpoint tuned to prioritize custom tools.

PreviewReasoningCodingAgentMultimodalWeights not released
MODEL NUMBER089
First public date
2026-02-19
Organization
Google DeepMind
Family
Gemini
01

Specifications

Only published specifications are shown.

Context
1,000,000 tokens
Maximum input
1,048,576 tokens↗
Maximum output
65,536 tokens↗
Input modalities
Text · Image · Audio · Video
Open weights
No
Status
Preview
02

Overview

Release dates

— Gemini 3.1 Pro Preview launched. ↗

03

Specifications alongside predecessor

Compared with Gemini 3 Pro Preview ↗

PreviousGemini 3 Pro Preview— · 1M ctx
CurrentGemini 3.1 Pro Preview— · 1M ctx
04

Architecture & capabilities

Model capabilities

Thinking modeCodingTool use

Connected tools

Computer use
05

Release history

Preview

Gemini 3.1 Pro Preview launched.

View source
06

Related models

Select a card to view the related model.

PredecessorGemini 3 Pro PreviewView details →SiblingGemini 3.1 Flash-LiteView details →
07

Sources

01
Gemini API release notesGoogle
Official · Verified02
Gemini API model limitsGoogle · Checked 2026-09-07
Official · Verified
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