There are more AI health tools than ever—but how well do they work?

Major tech companies including Microsoft, Amazon, and OpenAI have recently released AI health tools that use large language models (LLMs, AI systems trained on massive amounts of text to generate human-like responses) to answer medical questions and access user health records. While these tools are in high demand because many people struggle to access traditional healthcare, researchers emphasize that these products should be independently evaluated by outside experts before wide release, rather than relying solely on companies' own evaluations.