Which is the best AI for medical questions? Here’s the winner (Forbes, 4 March 2026)

Summary

Every day, millions of Americans use artificial intelligence tools like ChatGPT and others to ask medical questions. Physicians also use AI: Two in three U.S. doctors report using large language models regularly in some form, and roughly one in five consult AI for questions on patient care. Yet critical questions have remained largely unanswered: What’s the best AI for medical questions, and how badly can AI get things wrong?

New research by a team from Stanford, Harvard and several other institutions published under the fitting name Numerous Options Harm Assessment for Risk in Medicine, or NOHARM, offers the most rigorous answer yet.