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

> Source: <https://discuss.huggingface.co/t/what-is-the-best-open-source-framework-for-building-ai-agents-in-2026/176441#post_2>
> Published: 2026-06-25 22:29:21+00:00

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.