Competition and Cooperation of LLM Agents in Games

Fuente: arXiv
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Autores principales: Yao, Jiayi, Chen, Cong, Zhang, Baosen
Formato: Preprint
Publicado: 2026
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author Yao, Jiayi
Chen, Cong
Zhang, Baosen
author_facet Yao, Jiayi
Chen, Cong
Zhang, Baosen
contents Large language model (LLM) agents are increasingly deployed in competitive multi-agent settings, raising fundamental questions about whether they converge to equilibria and how their strategic behavior can be characterized. In this paper, we study LLM agent interactions in two standard games: a network resource allocation game and a Cournot competition game. Rather than converging to Nash equilibria, we find that LLM agents tend to cooperate when given multi-round prompts and non-zero-sum context. Chain-of-thought analysis reveals that fairness reasoning is central to this behavior. We propose an analytical framework that captures the dynamics of LLM agent reasoning across rounds and explains these experimental findings.
format Preprint
id arxiv_https___arxiv_org_abs_2604_00487
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Competition and Cooperation of LLM Agents in Games
Yao, Jiayi
Chen, Cong
Zhang, Baosen
Multiagent Systems
Computer Science and Game Theory
Systems and Control
Large language model (LLM) agents are increasingly deployed in competitive multi-agent settings, raising fundamental questions about whether they converge to equilibria and how their strategic behavior can be characterized. In this paper, we study LLM agent interactions in two standard games: a network resource allocation game and a Cournot competition game. Rather than converging to Nash equilibria, we find that LLM agents tend to cooperate when given multi-round prompts and non-zero-sum context. Chain-of-thought analysis reveals that fairness reasoning is central to this behavior. We propose an analytical framework that captures the dynamics of LLM agent reasoning across rounds and explains these experimental findings.
title Competition and Cooperation of LLM Agents in Games
topic Multiagent Systems
Computer Science and Game Theory
Systems and Control
url https://arxiv.org/abs/2604.00487