Gemini 3.1 Pro Preview from Google is now available on AI Gateway.

This model release brings quality improvements across software engineering and agentic workflows, with enhanced usability for real-world tasks in finance and spreadsheet applications. Gemini 3.1 Pro Preview introduces more efficient thinking across use cases, reducing token consumption while maintaining performance.

To use this model, set model to google/gemini-3.1-pro-preview in the AI SDK. This model supports the medium thinking level for finer control over the trade-offs between cost, performance, and speed.

Read the full changelog:

https://vercel.com/changelog/gemini-3-1-pro-is-live-on-ai-gateway