Google: Gemini 3.1 Pro Preview Custom Tools
Review
Google's Gemini 3.1 Pro Preview Custom Tools variant shares the same pricing and context window as the benchmarked flagship but lacks its own benchmark data, making it a specialised configuration rather than an independently scoreable model.
Assessment date: April 16, 2026
Our methodology takes into account a range of factors including pricing, functionality, capabilities, benchmark performance, and real-world applicability. Rankings are reviewed and updated regularly as new models are released. Issues with our rankings? Contact us
Performance Profile
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..
Capabilities
Architecture
| Modality | Text + Image + File + Audio + Video → Text |
| Tokenizer | Gemini |
How does Google: Gemini 3.1 Pro Preview Custom Tools stack up?
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Model Information
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $2.00 | $0.002000 |
| Output | $12.00 | $0.012000 |
Live Performance
Live endpoint metrics — refreshed every 30 minutes.
