Cited by 233Artificial Intelligence in Healthcare and EducationMachine Learning in HealthcareArtificial Intelligence in Healthcare

Benchmark evaluation of DeepSeek large language models in clinical decision-making

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Sandmann, Sarah, Hegselmann, Stefan, Fujarski, Michael, Bickmann, Lucas, Wild, Benjamin, Eils, Roland, Varghese, Julian·2025·Nature Medicine

Abstract

Large language models (LLMs) are increasingly transforming medical applications. However, proprietary models such as GPT-4o face significant barriers to clinical adoption because they cannot be deployed on site within healthcare institutions, making them noncompliant with stringent privacy regulations. Recent advancements in open-source LLMs such as DeepSeek models offer a promising alternative because they allow efficient fine-tuning on local data in hospitals with advanced information technology infrastructure. Here, to demonstrate the clinical utility of DeepSeek-V3 and DeepSeek-R1, we benchmarked their performance on clinical decision support tasks against proprietary LLMs, including GPT-4o and Gemini-2.0 Flash Thinking Experimental. Using 125 patient cases with sufficient statistical power, covering a broad range of frequent and rare diseases, we found that DeepSeek models perform equally well and in some cases better than proprietary LLMs. Our study demonstrates that open-source LLMs can provide a scalable pathway for secure model training enabling real-world medical applications in accordance with data privacy and healthcare regulations.

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  • These frameworks typically focus on narrow clinical scenarios (1-28 datasets), rely on limited data sources or synthetic data, and assess primarily accuracy without comprehensive taxonomy validation or deployment considerations.

    “However, these frameworks typically focus on narrow clinical scenarios (1–28 datasets), rely on limited data sources or synthetic data, and assess primarily accuracy without comprehensive taxonomy validation or deployment considerations.”

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  1. Bonferroni, C. E. Teoria statistica delle classi e calcolo delle probabilita. Pubblicazioni del R. Istituto Super. di Sci. Economiche e Commericiali di Firenze 8, 3–62 (1936).

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Authors
Sandmann, S., Hegselmann, S., Fujarski, M., Bickmann, L., Wild, B., Eils, R., & Varghese, J.
Affiliations
  • University of Münster (DE)
  • Berlin Institute of Health at Charité - Universitätsmedizin Berlin (DE)
  • Shanghai Medical College of Fudan University (CN)
  • Otto-von-Guericke-Universität Magdeburg (DE)
Corresponding author
Eils, Roland
Venue
Nature Medicine
Published
2025-04-23
Volume
31
Issue
8
Pages
2546-2549
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W4409695426
Cited by
233
References
20
Citations by year
2026: 171 · 2025: 62
FWCI
55.69
Type
journal article
Language
en
Open access
Locations
  • Nature Medicine (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • Deutsche Forschungsgemeinschaft (SFB 1470)
  • National Natural Science Foundation of China (W2441025)
  • Bundesministerium für Bildung und Forschung (01KX2121)
Topics
  • Health Sciences › Medicine › Health Informatics › Artificial Intelligence in Healthcare and Education
  • Physical Sciences › Computer Science › Artificial Intelligence › Machine Learning in Healthcare
  • Health Sciences › Health Professions › Health Information Management › Artificial Intelligence in Healthcare
Keywords
DeepSeek, open-source large language models, clinical decision support, benchmarking, GPT-4o, Gemini, DeepSeek-V3, DeepSeek-R1, data privacy, rare diseases, clinical adoption
MeSH terms
Clinical Decision-Making, Large Language Models, Humans, Benchmarking, Decision Support Systems, Clinical

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