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LlamaIndex

Leading RAG framework: index any document corpus into a vector store and retrieve the relevant chunks at query time.

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LangChainCognee

1 workflow use LlamaIndex

RAGFreeMachine-verified

LlamaIndex: index your documents and query them at runtime

Point LlamaIndex at a document corpus and build a VectorStoreIndex so an agent can retrieve the relevant chunks at query time instead of stuffing everything into context.

LlamaIndex· beginner