Microsoft AutoGen

Multi-agent conversation framework

What Microsoft AutoGen does

  • Multi-agent conversation framework
  • Event-driven, async agent design
  • Studio UI for prototyping
  • Fully open-source

Microsoft AutoGen — straight answers

What is Microsoft AutoGen?

Microsoft AutoGen is listed under Agent Frameworks (Developers), in the AI Agents & Automation category on Flocci AI Tools. Multi-agent conversation framework. It is free, with no paid plan attached, and it lives at microsoft.github.io.

Is Microsoft AutoGen free?

Microsoft AutoGen is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 396 entries on Flocci AI Tools with no upgrade path built in.

Can I use Microsoft AutoGen in a browser, or is there an app?

Microsoft AutoGen needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on an API and self-hosting.

What can Microsoft AutoGen do?

Microsoft AutoGen does 4 things the catalog singles out: Multi-agent conversation framework; event-driven, async agent design; studio ui for prototyping; fully open-source.

What is the best free alternative to Microsoft AutoGen?

Agno is the closest free alternative: it sits in the same Agent Frameworks (Developers) sub-category and is free. AWS Strands Agents, CAMEL and Claude Agent SDK also start free. The full list is on the alternatives page.

See the full list →

Microsoft AutoGen alternatives

Compare all alternatives →

LangGraph

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  • Human-in-the-loop and durable execution
  • Works with any LLM
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CrewAI

Agent Frameworks (Developers)
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  • Role-based multi-agent 'crews'
  • Simple Python API for collaboration
  • Tasks, tools and flows
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OpenAI Agents SDK

Agent Frameworks (Developers)
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  • Lightweight agent orchestration from OpenAI
  • Agent handoffs, guardrails and tracing
  • Tool and function calling built in
  • Open-source, pay only for model usage

LlamaIndex

Agent Frameworks (Developers)
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  • Leading framework for RAG and data agents
  • Connect LLMs to your documents & APIs
  • Agentic document workflows
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Google Agent Development Kit (ADK)

Agent Frameworks (Developers)
free
  • Open-source Python/Java framework from Google for building multi-agent systems
  • Native integration with Vertex AI Agent Engine and Gemini models
  • Model-agnostic — works with non-Google LLMs via LiteLLM

Pydantic AI

Agent Frameworks (Developers)
free
  • Type-safe Python agent framework from the Pydantic team, validated structured outputs
  • Model-agnostic (OpenAI, Anthropic, Gemini, Groq, Mistral, local)
  • Built-in dependency injection and streaming; pairs with Pydantic Logfire for observability

Head-to-head comparisons