Google Brings Gemini 3 to Stitch, Adding AI-Powered Interactive Prototyping

Summary

Google announced on December 10, 2025, that it was bringing Gemini 3 capabilities to Stitch, its experimental AI-powered UI design tool from Google Labs. The update integrates Gemini 3's improved multimodal reasoning into Stitch's UI generation pipeline, enabling higher-quality interface designs from natural language prompts or uploaded images. The December 10 update introduced two significant new features. First, "Prototypes" allows users to stitch together different screens on their canvas to