Android 15.1 Beta launches multimodal Assistant SDK and generative wallpaper system

AI · 5 min read

Android 15.1 Beta exposes a multimodal Assistant SDK that apps can embed to offer voice, text, and image-guided assistants inside experiences. The SDK supports fine-grained privacy controls, on-device fallback models, and hooks for developers to control turn-taking and conversational state across complex app flows.

Complementing the SDK is a generative wallpaper engine that allows designers to publish wallpaper templates with parametric controls, live previews, and context-aware variants that respond to time, location, and accessibility settings. Google provides a web-based authoring kit for designers to create and preview these templates across device sizes.

Google's release notes emphasize composability: Assistant sessions can be handed off between apps and system surfaces, and wallpaper templates can be packaged as lightweight assets in app bundles. Developers testing the beta report improved discovery options for contextual UI and praise the new design tooling for wallpapers.