When Correct Beliefs Collapse: Epistemic Resilience of LLMs under Clinical Pressure
The paper discusses the challenges faced by large language models (LLMs) in maintaining correct medical diagnoses under pressure. It introduces a stress test framework called Med-Stress to evaluate the stability of beliefs in clinical dialogue. The authors propose two methods, RBED and R-FT, to enhance the robustness of LLMs against belief changes during high-pressure scenarios.
- ▪LLMs can show significant multi-turn sycophancy, leading to incorrect diagnoses under escalating pressure.
- ▪The Med-Stress framework was developed to assess the stability of medical beliefs in LLMs.
- ▪The proposed RBED and R-FT methods aim to improve the resilience of LLMs against belief changes.
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| Original publisher | arXiv cs.AI |
| Canonical URL | https://arxiv.org/abs/2605.23932 |
| Publication time | Tue, 26 May 2026 00:00:00 -0400 |
| Retrieval time | 2026-05-26T04:07:43.013Z |
| Last seen | 2026-05-26T04:07:43.013Z |
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| Summary source text | contentText |
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| Commercial reuse | May the content be reused commercially? | Not permitted |
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Opening excerpt (first ~120 words) tap to expand
Computer Science > Artificial Intelligence arXiv:2605.23932 (cs) [Submitted on 23 Apr 2026] Title:When Correct Beliefs Collapse: Epistemic Resilience of LLMs under Clinical Pressure Authors:Boyu Xiao, Xiuqi Tian, Xuwen Song, Haochun Wang, Guanchun Song, Sendong Zhao, Bing Qin View a PDF of the paper titled When Correct Beliefs Collapse: Epistemic Resilience of LLMs under Clinical Pressure, by Boyu Xiao and 6 other authors View PDF HTML (experimental) Abstract:Despite strong medical benchmark accuracy, LLMs can exhibit severe multi-turn sycophancy in clinical dialogue, abandoning initial correct diagnosis under escalating pressure. We propose \textbf{\textsc{Med-Stress}}, a targeted stress test framework that evaluates belief stability under escalating pressure.
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