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Main Authors: Qian, Yiyue, Zhang, Shinan, Zhou, Yun, Ding, Haibo, Socolinsky, Diego, Zhang, Yi
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2603.00993
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author Qian, Yiyue
Zhang, Shinan
Zhou, Yun
Ding, Haibo
Socolinsky, Diego
Zhang, Yi
author_facet Qian, Yiyue
Zhang, Shinan
Zhou, Yun
Ding, Haibo
Socolinsky, Diego
Zhang, Yi
contents Large Language Models (LLMs) have revolutionized AI-generated content evaluation, with the LLM-as-a-Judge paradigm becoming increasingly popular. However, current single-LLM evaluation approaches face significant challenges, including inconsistent judgments and inherent biases from pre-training data. To address these limitations, we propose CollabEval, a novel multi-agent evaluation framework that implements a three-phase Collaborative Evaluation process: initial evaluation, multi-round discussion, and final judgment. Unlike existing approaches that rely on competitive debate or single-model evaluation, CollabEval emphasizes collaboration among multiple agents with strategic consensus checking for efficiency. Our extensive experiments demonstrate that CollabEval consistently outperforms single-LLM approaches across multiple dimensions while maintaining robust performance even when individual models struggle. The framework provides comprehensive support for various evaluation criteria while ensuring efficiency through its collaborative design.
format Preprint
id arxiv_https___arxiv_org_abs_2603_00993
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle CollabEval: Enhancing LLM-as-a-Judge via Multi-Agent Collaboration
Qian, Yiyue
Zhang, Shinan
Zhou, Yun
Ding, Haibo
Socolinsky, Diego
Zhang, Yi
Artificial Intelligence
Large Language Models (LLMs) have revolutionized AI-generated content evaluation, with the LLM-as-a-Judge paradigm becoming increasingly popular. However, current single-LLM evaluation approaches face significant challenges, including inconsistent judgments and inherent biases from pre-training data. To address these limitations, we propose CollabEval, a novel multi-agent evaluation framework that implements a three-phase Collaborative Evaluation process: initial evaluation, multi-round discussion, and final judgment. Unlike existing approaches that rely on competitive debate or single-model evaluation, CollabEval emphasizes collaboration among multiple agents with strategic consensus checking for efficiency. Our extensive experiments demonstrate that CollabEval consistently outperforms single-LLM approaches across multiple dimensions while maintaining robust performance even when individual models struggle. The framework provides comprehensive support for various evaluation criteria while ensuring efficiency through its collaborative design.
title CollabEval: Enhancing LLM-as-a-Judge via Multi-Agent Collaboration
topic Artificial Intelligence
url https://arxiv.org/abs/2603.00993