Guides
Haystack vs LangChain: Which for RAG
Haystack is built specifically for production-grade retrieval and search pipelines; LangChain is a broader framework that can also build RAG systems
LangChain vs LlamaIndex: What’s the Difference
LangChain is a general LLM-application framework; LlamaIndex is focused specifically on data ingestion and retrieval — here’s when each one actually fits
Resources
Haystack
Open-source framework for building production-grade retrieval-augmented generation and search pipelines
LangChain
The most widely used Python framework for building LLM-powered applications, with 700+ integrations and tools for agents, RAG, and chains
LlamaIndex
Data framework for building LLM-powered applications over your own data — handles ingestion, indexing, retrieval, and query pipelines for RAG systems