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LLM document auditing degrades at scale, fabricating errors

A new study has revealed that large language models, such as Google Gemini 3.0 Pro, exhibit significant performance degradation and hallucination when used to detect planted document contamination at scale. While effective at the single-document level, the model's ability to identify errors plummets when processing large batches, leading to the fabrication of false contaminants. The research highlights that the LLM is less adept at detecting plausible errors like typographical corruption and semantic reversal compared to absurd insertions, suggesting a need for enhanced verification mechanisms and bounded batch processing for LLM-based auditing systems. AI

IMPACT Highlights critical limitations in LLM reliability for automated auditing tasks, suggesting potential risks in applications requiring high accuracy.

RANK_REASON Academic paper detailing research findings on LLM capabilities. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.CL →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

LLM document auditing degrades at scale, fabricating errors

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Academic paper detailing research findings on LLM capabilities. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.CL TIER_1 English(EN) · Karan Parekh, Sanjana Pendyala Ravinder, Sana Mhapsekar, Medina Maloku ·

    When Auditors Fabricate: Batch-Size Degradation and Confident Hallucination in LLM Detection of Planted Document Contamination

    arXiv:2609.09696v1 Announce Type: new Abstract: Large language models are increasingly proposed as automated auditors of document quality, yet their reliability as detectors of planted errors is poorly characterised. We construct a contaminated corpus of 150 academic papers spann…