arXiv AI By Wendi Yu, Lianhao Zhou, Xiangjue Dong, Sai Sudarshan Barath, Declan Staunton, Byung-Jun Yoon, Xiaoning Qian, James Caverlee, Shuiwang Ji

When Do Multi-Agent Systems Help? An Information Bottleneck Perspective

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arXiv:2607. 16133v1 Announce Type: cross Abstract: LLM powered multi-agent systems (MAS) have emerged as a promising paradigm for complex tasks.

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arXiv AI
Jun 2

Scaling Behavior of Single LLM-Driven Multi-Agent Systems

arXiv:2606. 00655v1 Announce Type: cross Abstract: The burgeoning field of LLM-based Multi-Agent Systems (MAS) promises to tackle complex tasks through collaborative intelligence, yet fundamental questions regarding their scaling behavior and intrinsic collective dynamics remain underexplored.

By Jialing Li, Zhouhong Gu, Yin Cai, Hongwei Feng
arXiv AI
Aug 28

DIANOIA: Diagnostic Decomposition and Joint Optimization for Multi-Agent Reasoning

DIANOIA introduces a diagnostic framework for multi‑agent large language model systems, decomposing reasoning gain into three measurable channels—coverage, fidelity, and synthesis. The protocol identifies bottleneck channels for a given task and implements a corresponding multi‑agent system with role‑diverse proposers, execution‑grounded verification, and iterative synthesis. Experiments on GSM8K, AIME‑2025, MBPP, and BFCL‑SP show that DIANOIA outperforms strong baselines, achieving significant token savings and accuracy gains while accurately pinpointing the critical channels.

By Yiming Yang, Zhuoyuan Li, Fanxiang Zeng, Hao Fu, Yue Liu