LangChain vs LlamaIndex: Which RAG Framework to Choose?

Compare the two most popular RAG orchestration frameworks.

Architecture Comparison

LangChain is general-purpose; LlamaIndex focuses on data indexing.

Data Connectors

Evaluate built-in loaders for PDFs, websites, databases, and APIs.

Production Readiness

Consider observability, caching, and deployment patterns for each.

When to Use Which

Decision matrix based on project size, team skills, and data sources.