AI Agent Frameworks 2026: LangChain vs CrewAI vs AutoGen

Want to build an AI Agent application but there are too many frameworks out there — LangChain, CrewAI, AutoGen, Semantic Kernel... which one should you actually pick?

💡 What You Will Learn

Want to build an AI Agent application but there are too many frameworks out there — LangChain, CrewAI, AutoGen, Semantic Kernel... which one should you actually pick?

|:----|:----|:----|:-------:|:--------| | LangChain || Python ||| | CrewAI || Python ||| | AutoGen || Python ||| | Semantic Kernel || C#/Python ||| | Agno || Python |||

from crewai import Agent, Task, Crew

researcher = Agent(
    role="Researcher",
    goal="Collect and analyze information",
    backstory="You are a senior researcher"
)

writer = Agent(
    role="Writer",
    goal="Write clear and coherent reports"
)

research_task = Task(
    description="Collect latest information about AI Agent frameworks",
    agent=researcher
)

crew = Crew(
    agents=[researcher, writer],
    tasks=[research_task]
)
result = crew.kickoff()

autogen.AssistantAgent(
    name="assistant",
    llm_config={"config_list": [{"model": "gpt-4"}]}
)

|:--------|:--------|