Gemini 3.1 Pro Preview Custom Tools

Google DeepMind

Gemini 3.1 Pro Preview Custom Tools

Developer	Google DeepMind
Release date	February 19, 2026
Family	Gemini
Generation	Gemini 3.1
Level
Context window	1M tokens
Max output	66K tokens
Input	Text, audio, image, video, file
Output	Text
Knowledge cutoff	2025-01
Weights	Closed
Website	deepmind.google
Links	Model card Docs

Part of a series on

Google DeepMind

input: $2.00
cached: $0.20
output: $12.00
cache write: $0.375
Context: 1Mtokens
Released: 8mo ago

Specifications

Model

Developer: Google DeepMind
Family: Gemini Gemini 3.1
Type: Language model
Released: February 19, 2026
Model ID: google/gemini-3.1-pro-preview-customtools

Capabilities

Input → output: Text, audio, image, video, file → Text
Max output: 66K tokens
Tokenizer: Gemini
Knowledge cutoff: 2025-01

Weights

Openness: Closed

Sources:models.devOpenRouter

Metadata synced Nov 6, 2026, 12:03 AM UTC

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