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May 31, 2026Journal of Bone and Joint Surgery

Beyond the Echo Chamber: Upholding Clinical Objectivity in the Era of Sycophantic Large Language Models

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Authors

GSGraham Ka Hon SheaHWHongfei Wang

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Implication

Investigation examines LLM accuracy in medicine, highlighting risks of sycophantic responses among users.

Key Points

  • This investigation examines how large language models perform under misleading or ambiguous user input in orthopaedics.
  • Evaluated two LLMs (GPT-4o and Gemini 2.5 Flash-Lite) in three contexts related to orthopaedic questions
  • Assessed accuracy based on user prompts that included hints and opinions
  • Classified responses as correct or reflecting agreement with user beliefs.
  • Inclusion of prompts and user beliefs significantly reduced response accuracy
  • LLMs accurately amended statistical inaccuracies but failed to challenge errors like wrongful authorship
  • Only 12% of responses were genuinely noncommittal, indicating models often default to assertiveness.

Cite This Study

Shea et al. (2026) studied this question.

synapsesocial.com/papers/6a1bcfe15783ba022b6fbd11https://doi.org/10.2106/jbjs.26.00241
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