Gemini 3.1 Pro
Google's Pro model, in preview. Paid only on the Gemini API.
Google, reasoning. Checked 30 October 2026.
Where to use it through an API
Googlegemini-3.1-pro-preview
The maker publishes its own benchmarks and limits on its model page.
How it compares
The models just above and below it on the Artificial Analysis Intelligence Index.
| Model | Index | Context | Speed |
|---|---|---|---|
| Gemini 3.8 Flash | 31 | 1M | 137/s |
| Gemini 3.5 Flash-Lite | 12 | 1M | 454/s |
Use Gemini 3.1 Pro with every other AI at once
Put Gemini 3.1 Pro in one panel and ChatGPT, Claude, Gemini or any of 300+ models in the others. One message goes to all of them, answers arrive side by side, and test mode times them and hides the names so you judge fairly. Free during the beta with your own keys.
Questions
Is there a free Gemini 3.1 Pro API?
Not that we found. Gemini 3.1 Pro is paid per token through Google.
What is the Gemini 3.1 Pro model id?
Google: gemini-3.1-pro-preview.
How does Gemini 3.1 Pro score?
The Artificial Analysis Intelligence Index had not scored it when we checked on 30 October 2026.
Can I use Gemini 3.1 Pro with ChatGPT, Claude and Gemini at the same time?
Yes. MultiScreenAI puts Gemini 3.1 Pro in one panel and other models in the others, sends one message to all of them and shows the answers side by side.