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 in the AI SDK. This model supports the thinking level for finer control over the trade-offs between cost, performance, and speed.google/gemini-3.1-pro-previewmedium AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime.

It includes built-in , support, and intelligent provider routing with automatic retries.observabilityBring Your Own Key Learn more about , view the or try it in our .AI GatewayAI Gateway model leaderboardmodel playground Read more