Haystack

deepset's modular pipeline framework for production search and QA.

Haystack is an open-source framework from deepset for building production LLM applications, RAG pipelines, and search systems using a composable pipeline-and-component architecture. It supports retrievers, rankers, generators, and document stores that are wired together into directed pipelines. It is notable for its focus on production-grade, customizable NLP and search workflows.