AI vs. doctors: who diagnoses better?

NCT ID NCT07374926

Completed Knowledge-focused Sponsor: Maastricht University Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether an AI tool (GPT-4o) helps doctors diagnose fictional patients. 249 physicians participated in a randomized trial. Researchers measured how accurate their diagnoses were with and without AI assistance.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: GPT-4o (a large language model AI)
What this could lead to: If it works, this could show that AI tools help doctors make more accurate diagnoses.
What could go wrong: This is a small, completed study using fictional cases, not real patients. Real-world results may differ, and AI may not always be reliable.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

DIAGNOSIS VIGNETTE OF FICTIONAL PATIENTS

Contacts and locations

Locations

Aga Khan University Hospital

Nairobi, Kenya
Maastricht University

Maastricht, Netherlands
Universitas Indonesia

Jakarta, Indonesia

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