RAG_Techniques alternatives

LangChain is a workflow-first framework designed to build LLM applications, offering strong support for agents and RAG pipelines with a vast ecosystem of integrations.

LlamaIndex is a data-first RAG engine specializing in indexing and retrieval over private or domain-specific data, designed to plug into various LLMs and vector stores.

Haystack is a pipeline-centric, production-ready framework for building LLM and RAG applications, emphasizing modularity and scalability.

RAGFlow is an open-source RAG engine built around deep document understanding capabilities, offering a visual, low-code builder that excels at extracting structured information from complex documents.