Google

Gemini 3.1 Pro Preview Custom Tools

Name: Gemini 3.1 Pro Preview Custom Tools
Brand: Google
Price: 2.0000 USD

google/gemini-3.1-pro-preview-customtools

Current Pricing

Input ($/1M)

$2.00

Output ($/1M)

$12.00

Cache Read ($/1M)

$0.2000

Cache Write ($/1M)

$0.3750

Web Search ($/call)

$0.0140

Last updated: Jul 14, 2026 · Source: openrouter_api

Context Window

1.0M

Max Output

65.5K

Release Date

Feb 25, 2026

Modalities

textaudioimagevideofile

Function Calling

Streaming

Batch

Structured Output