Here's a fairly comprehensive list: https://github.com/slavakurilyak/awesome-ai-agents https://github.com/slavakurilyak/awesome-ai-agents CrewAI is a popular

Here's a fairly comprehensive list: https://github.com/slavakurilyak/awesome-ai-agents https://github.com/slavakurilyak/awesome-ai-agents CrewAI is a popular VC-backed one, but two that I think are kind of interesting in the open source space are: https://github.com/i-am-bee/beeai-framework https://github.com/i-am-bee/beeai-framework https://github.com/lastmile-ai/mcp-agent https://github.com/lastmile-ai/mcp-agent ... However I think the vast majority of "AI Agent" use-cases in practice right now are actually just workflows, and imo dify is great for those: https://github.com/langgenius/dify https://github.com/langgenius/dify [edit] worth mentioning [langfuse](https://github.com/langfuse/langfuse https://github.com/langfuse/langfuse), which is more like a platform that addresses the observability/evals/prompt management piece of the puzzle as opposed to a full-on "agent framework". In practice I have not yet run into a case where I needed something like what OpenAI just released, nor crewAI etc (despite it feeling like those cases may be coming)