AutoGen vs Haystack

Choose AutoGen if…

Best for developers building multi-agent systems that need iterative back-and-forth reasoning between agents, and its edge is the human proxy pattern makes it straightforward to build supervised, not fully autonomous, multi-agent workflows. Strong for complex research and coding tasks, now in maintenance mode, check whether the AG2 fork better fits new projects. Lean toward Haystack instead if a composable pipeline architecture rooted in real search engineering heritage, not a generic wrapper matters more for your use case.

Choose Haystack if…

Best for developers building production RAG pipelines who want each processing step to be independently swappable, and its edge is a composable pipeline architecture rooted in real search engineering heritage, not a generic wrapper. A clean, production-ready framework, the community is smaller than LangChain's so expect fewer examples to reference. Lean toward AutoGen instead if the human proxy pattern makes it straightforward to build supervised, not fully autonomous, multi-agent workflows matters more for your use case.