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arXiv · 2508.20973

ProactiveEval: A Unified Evaluation Framework for Proactive Dialogue Agents

Tianjian Liu·Fanqi Wan·Jiajian Guo·Xiaojun Quan
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Abstract

Proactive dialogue has emerged as a critical and challenging research problem in advancing large language models (LLMs). Existing works predominantly focus on domain-specific or task-oriented scenarios, which leads to fragmented evaluations and limits the comprehensive exploration of models' proactive conversation abilities. In this work, we propose ProactiveEval, a unified framework designed for evaluating proactive dialogue capabilities of LLMs. This framework decomposes proactive dialogue into target planning and dialogue guidance, establishing evaluation metrics across various domains. Moreover, it also enables the automatic generation of diverse and challenging evaluation data. Based on the proposed framework, we develop 328 evaluation environments spanning 6 distinct domains. Through experiments with 22 different types of LLMs, we show that DeepSeek-R1 and Claude-3.7-Sonnet exhibit exceptional performance on target planning and dialogue guidance tasks, respectively. Finally, we investigate how reasoning capabilities influence proactive behaviors and discuss their implications for future model development.

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Tianjian Liu, Fanqi Wan, Jiajian Guo, Xiaojun Quan. 2025-08-28. ProactiveEval: A Unified Evaluation Framework for Proactive Dialogue Agents. https://arxiv.org/abs/2508.20973

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