5 Best Open-Source Multi-Agent Frameworks You Should Know in 2025

Discover the top 5 open-source multi-agent frameworks in 2025 (ChatDev, CrewAI, Tribe, Open Multi-Agent Canvas, and AnythingLLM). Learn how they transform AI collaboration, workflow automation, and document-centric agent teamwork.

Multi-agent systems are quickly becoming one of the most exciting areas in AI development. Instead of relying on a single AI model to handle every task, these frameworks coordinate multiple specialized agents — each optimized for research, coding, testing, or analysis. The result: faster workflows, higher accuracy, and scalable automation.

If you’re building AI projects, SaaS products, or automation workflows, understanding multi-agent orchestration is crucial. Below, we explore five of the most innovative open-source multi-agent frameworks in 2025, along with their key features and use cases.

1. ChatDev — The Virtual AI Software Company

• What it is: A multi-agent framework simulating a full software company with CEO, CTO, programmer, and tester roles.
• Why it matters: Converts plain-language project descriptions into working…