Meet Dr. CaBot: Harvard’s new AI physician

Oct. 10, 2025
2 min read

Harvard University has created an artificial intelligence (AI) tool for medical education purposes, named Dr. CaBot, according to a news article written by Catherine Caruso.

Dr. CaBot was officially introduced in an October 8th New England Journal of Medicine article titled “Case 28-2025: A 36-Year-Old Man with Abdominal Pain, Fever, and Hypoxemia.” Dr. CaBot was the physician who made the diagnosis in this case. The tool can provide “differential diagnosis.” According to Caruso, “Dr. CaBot’s ability to spell out its “thought process” rather than focusing solely on reaching an accurate answer distinguishes it from other AI diagnostic tools. It is also one of only a few models designed to tackle more complex medical cases.”

Caruso emphasized that Dr. CaBot is not currently ready for clinical use, but the New England Journal of Medicine article is a big step forward for the tool. In the article, Dr. CaBot competes with an expert to diagnose a patient. “It marks the first time the journal is publishing an AI-generated diagnosis.” The machine’s creators have also been showcasing it in hospitals around Boston. They are also working on making upgrades to the system.

Arjun (Raj) Manrai, assistant professor of biomedical informatics in the Blavatnik Institute at HMS said in a statement, “We’re very nascent in human-AI collaboration, but the field is evolving rapidly. Eventually, Dr. CaBot might join the AI toolbox that physicians are already exploring as they determine how to best help their patients.”

About the Author

Erin Brady

Managing Editor

Erin Brady is Managing Editor of Medical Laboratory Observer.

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