A agentindex
Comparison

AutoGen vs LangChain

A like-for-like, spec-level comparison. Both entries are verified against their docs and repo.

AutoGen

Microsoft's framework for multi-agent conversations.

  • + Backed by Microsoft research
  • + Strong on conversational agent patterns
  • − API churned across major versions
  • − Heavier abstraction layer

LangChain

The broad framework for LLM applications and agents.

  • + Largest ecosystem of integrations
  • + Mature and battle-tested
  • − Broad, sometimes leaky abstractions
  • − Agent orchestration has moved to LangGraph
Spec AutoGen LangChain
Role Agent framework Agent framework
Tags agent-framework, library, multi-agent agent-framework, library, orchestration
License MIT MIT
Open source Yes Yes
Self-hostable Yes Yes
MCP support Yes Yes
Pricing free free
Starting price BYOK usage cost BYOK usage cost
Models claude, gpt, gemini, byok byok
Languages python, dotnet python, typescript
GitHub stars 59.3k 140.3k
Last activity 2026-04-15 2026-06-26