---
name: 'Google: Gemini 3.1 Pro Preview Custom Tools'
slug: gemini-3-1-pro-preview-customtools
type: Multimodal
providers:
  - openrouter
description: >-
  Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that
  improves tool selection behavior by preventing overuse of a general bash tool
  when more efficient third-party...
tags:
  - gemini
  - multimodal
is_open_source: false
context_window: 1048576
max_output: 65536
pricing:
  - image: 0.002
    input: 2
    output: 12
    provider: openrouter (Preview)
release_date: '2024-01-01'
openrouter_id: google/gemini-3.1-pro-preview-customtools
capabilities:
  audio: true
  vision: true
  tool_use: true
  citations: false
  reasoning: false
---
Google: Gemini 3.1 Pro Preview Custom Tools is a Multimodal model.
Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party...