LlamaIndex
FeaturedFramework for building production RAG systems and data-connected AI agents
Why choose LlamaIndex
LlamaIndex is a framework for connecting custom data to LLMs for building production RAG applications and AI agents. It specializes in data ingestion, indexing, and retrieval to enable LLMs to reason over your private data accurately.
- Best-in-class for RAG applications
- Excellent data connector library
- Strong production tooling
- Great Python SDK
Where it falls short
- Steeper learning curve than LangChain
- LlamaCloud can be expensive
- JavaScript SDK less mature
Best for these users
Pricing overview
Open-source free; LlamaCloud from $97/month; Enterprise custom pricing
Check current pricing →Key features
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The verdict
LlamaIndex is a solid choice for business teams who need best-in-class for rag applications. At freemium, it delivers good value. Main caveat: steeper learning curve than langchain. Compare with alternatives before committing.