mlsanityData to 7 Oct 2026

MAD-Fact: A Multi-Agent Debate Framework for Long-Form Factuality Evaluation in LLMs

arXiv 2510.22967 ↗First posted 27 Oct 2025cs.CL cs.AIcited by 4

On the map: LLM agents and tool use → Web, search, and research agents

Abstract (arXiv)

The widespread adoption of Large Language Models (LLMs) raises critical concerns about the factual accuracy of their outputs, especially in high-risk domains such as biomedicine, law, and education. Existing evaluation methods for short texts often fail on long-form content due to complex reasoning chains, intertwined perspectives, and cumulative information. To address this, we propose a systematic approach integrating large-scale long-form datasets, multi-agent verification mechanisms, and weighted evaluation metrics. We construct LongHalluQA, a Chinese long-form factuality dataset; and develop MAD-Fact, a debate-based multi-agent verification system. We introduce a fact importance hierarchy to capture the varying significance of claims in long-form texts. Experiments on two benchmarks show that larger LLMs generally maintain higher factual consistency, while domestic models excel on Chinese content. Our work provides a structured framework for evaluating and enhancing factual reliability in long-form LLM outputs, guiding their safe deployment in sensitive domains.

Key facts. Cited by 4 papers in the map (data through 7 Oct 2026). Placed in Web, search, and research agents, one of 16 directions in LLM agents and tool use. Builds on 57 of its 69 references that are in the map. First posted on arXiv 27 Oct 2025.

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57 of 69 references.

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Citing papers per year: 2026: 4.

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  4. 2025Understanding Inequality of LLM Fact-Checking over Geographic Regions with Agent and Retrieval models
  5. 2025CANDY: Benchmarking LLMs' Limitations and Assistive Potential in Chinese Misinformation Fact-Checking
  6. 2024Can LLMs Produce Faithful Explanations For Fact-checking? Towards Faithful Explainable Fact-Checking via Multi-Agent Debate
  7. 2026Leveraging LLM Parametric Knowledge for Fact Checking without Retrieval
  8. 2023Are Large Language Models Good Fact Checkers: A Preliminary Study