The Royal Australasian College of Physicians (RACP) "Long Cases" assess a trainee's clinical reasoning beyond what is tested in multiple-choice questions, which large language models (LLMs) have already demonstrated proficiency in. This study evaluated a LLM's ability to perform a "Long Case" assessment, including history-taking, case presentation, and answering examiner questions. The LLM achieved passing consensus scores of 4-5 out of 6 on five cases, suggesting potential for LLMs in complex clinical evaluations.

The authors have declared no competing interest.

SB and JB are supported by Fulbright Scholarships and Royal Australasian College of Physicians Research Establishment Fellowships.

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All data produced in the present work are contained in the supplementary information.