AutoGen
✓Open-source multi-agent framework (Python/.NET) with AgentChat and Studio
AI Framework/Library
AutoGen is Microsoft's open-source framework for building agentic applications with your own model API keys. The current stable release (python v0.7.5, Sep 30 2025) ships a layered architecture: Core for event-driven message passing across Python and .NET runtimes, AgentChat for common multi-agent patterns, Extensions for model/tool connectors (OpenAI and Azure OpenAI, Anthropic, Gemini via OpenAI-compatible endpoints, and local models via Ollama), plus AutoGen Studio for no-code multi-agent prototyping and AutoGen Bench for evaluation. It's MIT-licensed and maintained in the open on GitHub.
Open Source
Key Features:
- •Layered Core, AgentChat, and Extensions architecture with event-driven agents
- •AutoGen Studio for visual multi-agent workflow building
- •AutoGen Bench and Magentic-One reference agents for evaluation and examples
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