Category AI Architecture

LlamaIndex vs. LangChain: How to Choose, Combine, and Evaluate Them in Production RAG

LlamaIndex vs LangChain

LlamaIndex and LangChain overlap more than a simple โ€œdata layer versus application layerโ€ diagram suggests. This guide compares their current building blocks, explains when one framework is enough, and shows when a hybrid boundary can make sense. The right choice depends on your retrieval workload, workflow complexity, team ownership, and evaluation requirements.

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