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What is the best open-source framework for building AI agents in 2026?

The best open-source framework for building AI agents in 2026 depends on the use case, with popular options including LangChain/LangGraph, Google ADK, DeepAgents, CrewAI, AutoGen, and AG2.

read1 min views1 publishedJun 25, 2026
What is the best open-source framework for building AI agents in 2026?
Image: Discuss (auto-discovered)

What is the best open-source framework for building AI agents in 2026?

There are multiple of them but it depends on your use-case.

I am personally using LangChain/LangGraph, Google ADK, and DeepAgents but they can be complex for some.

Most people use CrewAI, AutoGen, and AG2. I think n8n is not open-source but I never used it and can be wrong.

source & further reading
discuss.huggingface.co — original article Rakarrack-0.6.1 port making progress! ( AI assisted ) Cloud Storage Poll Welcome to Haiku basic(Haiku Docs, Haiku slide and Haiku sheets)
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