← Back to AI Models
Gemini 3.1 Pro Preview (Custom Tools)
A Gemini 3.1 Pro preview variant listed on OpenRouter that is explicitly labeled for custom tools, suggesting enhanced tool-use integration with a very large context window.
tool-usereasoninglong-context
Overview
A Gemini 3.1 Pro preview variant listed on OpenRouter that is explicitly labeled for custom tools, suggesting enhanced tool-use integration with a very large context window.
Key Capabilities
- Tool Use — suited for tasks requiring tool use proficiency
- Reasoning — suited for tasks requiring reasoning proficiency
- Long Context — suited for tasks requiring long context proficiency
Recommended Use Cases
- Agentic Workflows
- Tool Integrations
- Long Context Analysis
Technical Specifications
- Context Window: 1.0M tokens
- Open Weight: No
- Release Date: February 25, 2026
Provider
Gemini 3.1 Pro Preview (Custom Tools) is developed by Google. For the latest information, visit the official documentation.