OpenAI has launched Health in ChatGPT for eligible users in the United States, allowing the AI chatbot to connect with Apple Health and supported medical records to provide more personalised health-related assistance. The feature is available to logged-in US users aged 18 and older on the web and iOS across Free, Go, Plus and Pro plans. Users can securely connect health information such as medications, laboratory results, recent medical visits, sleep data and physical activity. OpenAI said more than 300 million people use ChatGPT for health-related questions every week. New AI models include GPT-5.5 Instant on the Free plan and GPT-5.6 Sol for paid subscribers, which the company described as its most advanced health-focused model. OpenAI said connected Apple Health data, medical records and conversations using that information will not be used to train AI models or for advertising purposes, and health information receives additional encryption. Users must grant permission before ChatGPT accesses their health information and can disconnect their health accounts at any time, after which connected data will be deleted within 30 days. The feature currently supports Apple Health, selected US hospital systems, One Medical and Function Health.