AutoGen

framework
https://github.com/microsoft/autogen →

AutoGen is Microsoft's open-source framework specifically designed for multi-agent conversations. Unlike general-purpose LLM frameworks, AutoGen was built from the ground up around the concept of agents talking to each other.

The framework provides primitives for agent-to-agent messaging, group chat with dynamic speaker selection, human-in-the-loop patterns, and code execution. AutoGen agents can be backed by different LLMs, allowing you to use the right model for each agent role.

AutoGen is particularly strong for research-oriented multi-agent systems where agent dialogue and debate are core to the workflow.

Key Features

  • •Native multi-agent conversation support
  • •Group chat with speaker selection
  • •Human-in-the-loop integration
  • •Code execution environment
  • •Flexible agent configuration

Pros

  • +Purpose-built for multi-agent systems
  • +Microsoft research backing
  • +Clean conversation primitives
  • +Good for debate and verification patterns

Cons

  • −Primarily Python
  • −Smaller ecosystem than LangChain
  • −Less mature tooling ecosystem