Gemini 3.1 Pro Preview Custom Tools: pricing, specs, and how to use it (2026)
Gemini 3.1 Pro Preview Custom Tools is an AI model from Google, available alongside ChatGPT, Claude, Gemini, and 300+ other models inside Admix on one subscription from $8.99/mo.
Quick specs
| Provider | |
| Model ID | google/gemini-3.1-pro-preview-customtools |
| Input price | $2.00 / 1M tokens |
| Output price | $12.00 / 1M tokens |
| Tier | pro |
| Accepts images | Yes |
| Category | Advanced |
How to use Gemini 3.1 Pro Preview Custom Tools in Admix
Open Admix, pick Gemini 3.1 Pro Preview Custom Tools from the model list, and start chatting. You can also run the same prompt through Gemini 3.1 Pro Preview Custom Tools and other frontier models like Claude, GPT-5, and Gemini side by side, then pick the best answer or spot disagreement. One subscription, no separate API key.
Compare Gemini 3.1 Pro Preview Custom Tools with other AI models
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FAQ
What is Gemini 3.1 Pro Preview Custom Tools?
Gemini 3.1 Pro Preview Custom Tools is an AI model from Google, available inside Admix alongside 300+ other frontier and open-source AI models on one subscription.
How much does Gemini 3.1 Pro Preview Custom Tools cost?
Gemini 3.1 Pro Preview Custom Tools costs $2.00 per million input tokens and $12.00 per million output tokens. In Admix you use it inside one subscription starting at $8.99 per month, no separate API key required.
Can I compare Gemini 3.1 Pro Preview Custom Tools with ChatGPT, Claude, or Gemini?
Yes. Admix lets you run the same prompt through Gemini 3.1 Pro Preview Custom Tools and any of the other 300+ models in the catalog, then see the answers side by side.
Try Gemini 3.1 Pro Preview Custom Tools in Admix
One subscription, 300+ AI models including Gemini 3.1 Pro Preview Custom Tools. Compare any of them side by side from $8.99/mo.
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