WHOOP, a wearable device company, is using OpenAI's GPT-4 to provide users with personalized health and fitness coaching. This integration allows WHOOP to offer tailored advice based on user data, such as heart rate and sleep patterns. The use of GPT-4 in this application is an example of how large language models can be applied in real-world settings. --- Why it matters: This development matters because it showcases the potential for LLMs like GPT-4 to improve health outcomes by providing personalized advice and coaching. This could have significant implications for healthcare professionals and researchers looking to leverage AI in their work. Source: https://openai.com/index/whoop