| Tool | License | Stars | Description |
|---|---|---|---|
| Microsoft Agent Framework | MIT | 7.7k | Microsoft’s recommended framework for new projects |
| CrewAI | MIT | 47k | Role-playing multi-agent system |
| LangChain | MIT | 129k | General-purpose LLM framework |
| LlamaIndex | MIT | 47.5k | Document-focused RAG framework |
| Camel | MIT | 5k+ | Communicative agents for language tasks |
| AgentOps | MIT | 6k+ | Agent development platform |
| Feature | AutoGen | Agent Framework | CrewAI | LangChain |
|---|---|---|---|---|
| Multi-Agent | ✅ | ✅ | ✅ | ✅ |
| Conversational | ✅ | ✅ | ⚠️ Limited | ⚠️ Custom |
| Role-Playing | ⚠️ Custom | ⚠️ Custom | ✅ | ⚠️ Custom |
| Graph Workflows | ⚠️ Limited | ✅ | ⚠️ Limited | ✅ (LangGraph) |
| Visual Builder | ✅ (Studio) | ✅ (DevUI) | ✅ | ❌ |
| .NET Support | ✅ | ✅ | ❌ | ❌ |
| Enterprise Platform | ❌ | ✅ | ✅ (AMP) | ✅ (LangSmith) |
| Status | Maintenance | Active | Active | Active |
Benefits:
Considerations:
Migration Path:
Benefits:
Considerations:
Benefits:
Considerations:
Some projects use multiple frameworks together:
# AutoGen + LangChain
from autogen import AssistantAgent
from langchain.tools import tool
# Use LangChain tools with AutoGen agents
@tool
def search(query: str) -> str:
"""Search the web."""
return search_api(query)
agent = AssistantAgent(
"assistant",
llm_config={"config_list": [...]},
functions=[search.to_function()]
)
# AutoGen + LlamaIndex
from autogen import AssistantAgent
from llama_index.core import VectorStoreIndex
# Use LlamaIndex RAG with AutoGen
index = VectorStoreIndex.from_documents(docs)
query_engine = index.as_query_engine()
def rag_query(query: str) -> str:
"""Query the RAG index."""
return str(query_engine.query(query))
agent = AssistantAgent(
"researcher",
llm_config={"config_list": [...]},
functions=[rag_query]
)
| Requirement | Best Choice |
|---|---|
| New Microsoft project | Agent Framework |
| Existing AutoGen codebase | Stay with AutoGen |
| Role-playing agents | CrewAI |
| Document RAG focus | LlamaIndex |
| Enterprise observability | LangChain + LangSmith |
| .NET integration | Agent Framework |
| Visual builder | AutoGen Studio / Agent Framework DevUI |
| Simple orchestration | CrewAI |
| Complex workflows | Agent Framework / LangGraph |