Open-source framework by deepset for production RAG and agent pipelines.
Haystack is an open-source Python framework for building search, RAG, and agentic pipelines. Its pipeline abstraction connects components (retrievers, rankers, generators, tools) into composable, branchable graphs. Haystack 2.x focuses on production readiness, and deepset offers a managed enterprise platform (deepset AI Platform) on top of it.
Open-source framework is free (Apache 2.0). deepset's managed enterprise platform is separately priced.