Gogle’s chief health officer Karen DeSalvo described an “inflection point in AI, where we can see its potential to transform health on a planetary scale” at the tech giant’s annual health event on Tuesday.

One of the future applications? An AI-powered health coach that’s coming to your Fitbit. The company is building what it calls a “personal health” large language model, with one major caveat: the bot shouldn’t be considered medical advice. This was a consistent theme throughout the event, as Google kept reinforcing the idea that its AI tools weren’t making any medical decisions. “It seems clear that in the future AI won't replace doctors, but doctors who use AI will replace those who don't,” said DeSalvo.

The Fitbit model is being built on Gemini (Google’s competitor LLM to rival OpenAI’s GPT) and fine-tuned on “a large set of health signals from high quality research case studies,” according to Florence Thng, director of product at Fitbit. The AI coach, which will be available “later this year” for testing among a limited group of Android users, will provide “tailored insights based on patterns in sleep schedule, exercise intensity, changes in heart rate variability, resting heart rate,” said Thng. The feature “is not at all intended to replace the doctor,” said Thng. “It's not going to diagnose or treat any medical condition.”