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New research reveals multimodal LLMs can ignore visual evidence due to text override

A new arXiv paper investigates a phenomenon called "multimodal contextual sycophancy" in large language models, where external text can override conflicting visual evidence. Researchers developed a diagnostic tool with 998 cases to test this, varying visual information, commonsense priors, and external text. The study found that models like Gemini and GPT-5.1 exhibit this sycophancy, with performance improving significantly when a "System-2 Visual Arbitration" method is used to shield the visual witness from text. AI

IMPACT Highlights potential failure modes in multimodal AI, suggesting a need for more robust evaluation methods.

RANK_REASON The cluster contains an academic paper detailing a new diagnostic for multimodal LLM behavior. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.AI →

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New research reveals multimodal LLMs can ignore visual evidence due to text override

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The cluster contains an academic paper detailing a new diagnostic for multimodal LLM behavior. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.AI TIER_1 English(EN) · Yi-Cheng Lai, Hen-Hsen Huang ·

    Do Multimodal LLMs See Before They Read? Diagnosing Contextual Sycophancy

    arXiv:2609.00067v1 Announce Type: cross Abstract: External text can override conflicting image evidence in multimodal large language models, a failure we call multimodal contextual sycophancy. We introduce a 998-case diagnostic that independently varies visual evidence, commonsen…