tools
AutoGen Review 2026 — Microsoft Multi-Agent AI Framework
AutoGen by Microsoft is the leading open-source multi-agent AI framework. Build teams of LLM agents that collaborate, write code, and solve complex problems autonomously.
AutoGen lets developers create AI agents, define how they communicate, connect them to language models and tools, and run multi-agent workflows. Its packages include Core, AgentChat, Extensions, AutoGen Studio, and AutoGen Bench.
It is used for agent orchestration, tool use, code execution, web browsing, distributed runtimes, and workflow prototyping. AutoGen is now in maintenance mode; new projects are directed to Microsoft Agent Framework. Model-provider usage and related APIs may cost extra.
Features
- Build autonomous or human-assisted multi-agent applications
- Create event-driven agents with local or distributed runtimes
- Use AgentChat for two-agent and group-chat patterns
- Connect to OpenAI, Azure OpenAI, hosted, and local models
- Add tools for code execution, MCP, GraphRAG, and web browsing
- Prototype workflows with the AutoGen Studio no-code GUI
- Run agent benchmarks with AutoGen Bench
- MIT-licensed open-source code
Use cases
- Build multi-agent assistants for complex tasks
- Orchestrate agents that browse the web and use tools
- Prototype agent workflows without writing interface code
- Create coding agents that generate, execute, and debug code
- Run distributed agent systems across Python and .NET
- Evaluate agent performance with workflow benchmarks