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Multi-agent systems (MAS) extend large language models (LLMs) from independent single-model reasoning to coordinative system-level intelligence. While existing LLM agents depend on text-based mediation for reasoning and communication, we…

Computation and Language · Computer Science 2025-12-09 Jiaru Zou , Xiyuan Yang , Ruizhong Qiu , Gaotang Li , Katherine Tieu , Pan Lu , Ke Shen , Hanghang Tong , Yejin Choi , Jingrui He , James Zou , Mengdi Wang , Ling Yang

Multi-agent systems achieve state-of-the-art outcomes through peer collaboration. However, when an agent in the pipeline silently drops a constraint, the system's final output may look correct even though the reasoning chain was quietly…

As autonomous agents become more prevalent, understanding their collective behaviour in strategic interactions is crucial. This study investigates the emergent cooperative tendencies of systems of Large Language Model (LLM) agents in a…

Multiagent Systems · Computer Science 2025-01-28 Richard Willis , Yali Du , Joel Z Leibo , Michael Luck

Large Language Models (LLMs) have shown remarkable reasoning capabilities in mathematical and scientific tasks. To enhance complex reasoning, multi-agent systems have been proposed to harness the collective intelligence of LLM agents.…

Artificial Intelligence · Computer Science 2025-10-22 Zhenyu Bi , Meng Lu , Yang Li , Swastik Roy , Weijie Guan , Morteza Ziyadi , Xuan Wang

Large-language models (LLMs) have demonstrated powerful problem-solving capabilities, in particular when organized in multi-agent systems. However, the advent of such systems also raises several questions on the ability of a complex network…

Multiagent Systems · Computer Science 2025-07-14 Florian Grötschla , Luis Müller , Jan Tönshoff , Mikhail Galkin , Bryan Perozzi

The last years have seen a growing interest in collaborative systems like electronic marketplaces and P2P file sharing systems where people are intended to interact with other people. Those systems, however, are subject to security and…

Computers and Society · Computer Science 2012-03-09 Antonino Simone , Boris Skoric , Nicola Zannone

Large Language Models (LLMs) have demonstrated remarkable capabilities in various reasoning and generation tasks. However, their proficiency in complex causal reasoning, discovery, and estimation remains an area of active development, often…

Artificial Intelligence · Computer Science 2025-09-03 Adib Bazgir , Amir Habibdoust , Yuwen Zhang , Xing Song

LLM-based agents have made significant advancements in interactive environments, such as mobile operations and web browsing, and other domains beyond computer using. Current multi-agent systems universally excel in performance, compared to…

Computation and Language · Computer Science 2025-08-21 Zhitao He , Zijun Liu , Peng Li , Yi R. Fung , Ming Yan , Ji Zhang , Fei Huang , Yang Liu

Large Language Models (LLMs) have enabled the emergence of autonomous agents capable of complex reasoning, planning, and interaction. However, coordinating such agents at scale remains a fundamental challenge, particularly in decentralized…

Multiagent Systems · Computer Science 2025-09-23 Minfeng Qi , Tianqing Zhu , Lefeng Zhang , Ningran Li , Wanlei Zhou

Governing common-pool resources requires agents to develop enduring strategies through cooperation and self-governance to avoid collective failure. While foundation models have shown potential for cooperation in these settings, existing…

Computation and Language · Computer Science 2026-04-22 Ryan Faulkner , Anushka Deshpande , David Guzman Piedrahita , Joel Z. Leibo , Zhijing Jin

Despite recent advances in reputation technologies, it is not clear how reputation systems can affect human cooperation in social networks. Although it is known that two of the major mechanisms in the evolution of cooperation are spatial…

Physics and Society · Physics 2017-01-24 Tatsuya Sasaki , Hitoshi Yamamoto , Isamu Okada , Satoshi Uchida

Multi-agent social dilemmas, such as the tragedy of the commons, capture settings where individual incentives conflict with collective well-being, making these systems highly vulnerable to collapse under disruptions. In this context, this…

Multiagent Systems · Computer Science 2026-05-21 Manuela Chacon-Chamorro , Luis Felipe Giraldo , Nicanor Quijano

Reputation systems concern soft security dynamics in diverse areas. Trust dynamics in a reputation system should be stable and adaptable at the same time to serve the purpose. Many reputation mechanisms have been proposed and tested over…

Social and Information Networks · Computer Science 2019-03-15 Ekaterina Yashkina , Arseny Pinigin , JooYoung Lee , Manuel Mazzara , Akinlolu Solomon Adekotujo , Adam Zubair , Luca Longo

Many complex tasks require extended effort, diverse capabilities, or coordinated actions beyond what a single agent can provide. However, simply adding more agents does not guarantee better performance, as effective cooperation depends on…

Artificial Intelligence · Computer Science 2026-05-28 Hanqing Yang , Narjes Nourzad , Shiyu Chen , Marie Siew , Jingdi Chen , Carlee Joe-Wong

We introduce RedDebate, a novel multi-agent debate framework that provides the foundation for Large Language Models (LLMs) to identify and mitigate their unsafe behaviours. Existing AI safety approaches often rely on costly human evaluation…

Computation and Language · Computer Science 2025-10-13 Ali Asad , Stephen Obadinma , Radin Shayanfar , Xiaodan Zhu

We study the emergence of agency from scratch by using Large Language Model (LLM)-based agents. In previous studies of LLM-based agents, each agent's characteristics, including personality and memory, have traditionally been predefined. We…

Artificial Intelligence · Computer Science 2024-11-06 Ryosuke Takata , Atsushi Masumori , Takashi Ikegami

Recent work, spanning from autonomous vehicle coordination to in-space assembly, has shown the importance of learning collaborative behavior for enabling robots to achieve shared goals. A common approach for learning this cooperative…

Multiagent Systems · Computer Science 2025-02-25 Kartik Nagpal , Dayi Dong , Jean-Baptiste Bouvier , Negar Mehr

Recent years have witnessed the rapid development of Large Language Model-based Multi-Agent Systems (MAS), which excel at collaborative decision-making and complex problem-solving. However, malicious agents in MAS may inject misinformation…

Artificial Intelligence · Computer Science 2026-05-28 Yaoyang Luo , Zhi Zheng , Ziwei Zhao , Tong Xu , Zhao Jielun , Wenjun Xue , Yong Chen , Enhong Chen

We study emergent social dynamics in LLM agents playing The Resistance: Avalon, a hidden-role deception game. Unlike prior work on single-game performance, our agents play repeated games while retaining memory of previous interactions,…

Multiagent Systems · Computer Science 2026-04-23 Suveen Ellawela

Cooperation underlies many natural and artificial systems. While voluntary participation can sustain cooperation without informational assumptions, real interactions are rarely anonymous, leaving the joint effects of participation and…

Physics and Society · Physics 2026-01-27 Chen Shen , Zhao Song , Xinyu Wang , Lei Shi , Matjaž Perc , Zhen Wang , Jun Tanimoto