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[ACL 2025 Findings] MegaAgent: A Large-Scale Autonomous LLM-based Multi-Agent System Without Predefined SOPs

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MegaAgent: A Large-Scale Autonomous LLM-based Multi-Agent System Without Predefined SOPs

MegaAgent is a framework designed to manage autonomous cooperation in large-scale LLM-powered multi-agent systems, enabling dynamic agent generation, task auto-splitting, and enhanced communication without relying on predefined operating procedures.

Framework

fig

Code Overview

This repository contains two parts: the latest version of MegaAgent at ., and examples at examples/.

To run the latest version, you can add your key and change the prompt in config.py, and run main.py. The output will be located at files/. The default prompt is used for automatically generating a Gobang game.

Some experiments are shown in examples/ using an older version of MegaAgent. You can use the same prompt while substituting other files with the latest version.

Experimental Results

fig2

fig3

Model MBPP HumanEval MATH GSM-8k
MetaGPT 81.7% 82.3% N/A N/A
Camel 78.1% 57.9% 22.3% 45.6%
AgentVerse 82.4% 89.0% 54.5% 81.2%
AutoGen 85.3% 85.9% 69.5% 87.8%
MegaAgent 92.2% 93.3% 69.0% 93.0%

(Quantitative experiments using gpt-4o as backbone)

We also used GPT-4o to achieve the following results on TravelPlanner. The submission file is included in examples/travel planner.

  • Delivery Rate: 100.0%
  • Commonsense Constraint Micro Pass Rate: 81.88%
  • Commonsense Constraint Macro Pass Rate: 27.22%
  • Hard Constraint Micro Pass Rate: 40.48%
  • Hard Constraint Macro Pass Rate: 23.89%
  • Final Pass Rate: 10.0%

Licenses

This repository is under license CC BY 4.0.

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[ACL 2025 Findings] MegaAgent: A Large-Scale Autonomous LLM-based Multi-Agent System Without Predefined SOPs

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