Overview
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...
Google: Gemini 3.1 Pro Preview Custom Tools in depth
Google: Gemini 3.1 Pro Preview Custom Tools, built by Google, sits in the video & audio and chatbots & llms space and is a paid tool starting at $2.00/1M tokens. Our editors rate it 9.2 out of 10 based on capability, ecosystem and value. It handles a context window of 1,048,756 tokens.
On the feature side, Google: Gemini 3.1 Pro Preview Custom Tools brings 1,048,756-token context window, vision (image input), reasoning / chain-of-thought and tool / function calling. These are the capabilities that most shape day-to-day use and separate it from thinner alternatives.
Google: Gemini 3.1 Pro Preview Custom Tools is most often chosen for content creation, research and writing. If that matches your goals, it's a strong candidate to shortlist.
Key features
- ✓1,048,756-token context window
- ✓Vision (image input)
- ✓Reasoning / chain-of-thought
- ✓Tool / function calling
- ✓Structured (JSON) outputs
Pricing
Pros
Cons
Who should use Google: Gemini 3.1 Pro Preview Custom Tools
- →Anyone looking for a video & audio and chatbots & llms tool from Google.
- →Teams and individuals focused on content creation, research and writing.
- →Workflows that need a 1,048,756 tokens context window.
Who should look elsewhere
- →Anyone who needs a free tier — this tool is paid only.
Best for
Google: Gemini 3.1 Pro Preview Custom Tools alternatives
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Frequently asked questions
Q. Is Google: Gemini 3.1 Pro Preview Custom Tools free?
No — Google: Gemini 3.1 Pro Preview Custom Tools is a paid tool, starting at $2.00/1M tokens.
Q. How much does Google: Gemini 3.1 Pro Preview Custom Tools cost?
Google: Gemini 3.1 Pro Preview Custom Tools starts at $2.00/1M tokens. API usage is around $2 per 1M input tokens and $12 per 1M output tokens.
Q. What is Google: Gemini 3.1 Pro Preview Custom Tools best for?
Google: Gemini 3.1 Pro Preview Custom Tools is best suited to content creation, research and writing, within the video & audio and chatbots & llms category.
Q. What are the best Google: Gemini 3.1 Pro Preview Custom Tools alternatives?
Popular alternatives to Google: Gemini 3.1 Pro Preview Custom Tools include Google: Gemini 3.5 Flash, Google: Gemini 3.1 Flash Lite, Google Gemini Pro Latest and Google Gemini Flash Latest. Each trades off price, quality and ecosystem differently.
How we rate AI tools
Our quality score weighs capability on real tasks, breadth of features and integrations, pricing and value, and how actively the tool is maintained. Scores are editorial guidance, not benchmarks — always trial a tool on your own workflow before committing. Pricing and features change frequently, so verify current details on the official site.
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