On-device or cloud? Building hybrid AI inference into your Android app with Firebase AI Logic

This is a submission for the Google Cloud NEXT Writing Challenge Not every prompt needs the cloud Every time a user taps a button in your Android app and Gemini responds, something happens in the background you might not think about: a round trip to Google's servers. Data leaves the device, gets processed in the cloud, and comes back. For most prompts, that's fine. But what about a health journaling app where the prompt contains symptoms? A notes app where the query is someone's private thought?