Google: Gemini 3.1 Pro Preview Custom Tools
Analysis Summary
Google: Gemini 3.1 Pro Preview Custom Tools sits in the Emerging tier on our leaderboard, ranked #301 of 556 published models on overall intelligence. At $2.00 input and $12.00 output per 1M tokens, it is among the most expensive on the market. It offers an exceptionally large context window suited to long-document workflows and supports tool use, function calling, vision, and reasoning.
Editorial notes
Gemini 3.1 Pro Preview Custom Tools variant shares the same pricing and multimodal spec as the benchmarked version but has no independent benchmark data, limiting score confidence.
Assessed May 14, 2026
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
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
How does Google: Gemini 3.1 Pro Preview Custom Tools stack up?
Compare side-by-side with other emerging models.
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 ā refreshed every 30 minutes.
