LIVE
EU AI Act enforcement begins · June 2026NIST AI RMF — risk management framework publishedISO/IEC 42001 AI management standard now certifiableOpenAI o3 sets new reasoning benchmarksAnthropic raises $4B Series EEU AI Act enforcement begins · June 2026NIST AI RMF — risk management framework publishedISO/IEC 42001 AI management standard now certifiableOpenAI o3 sets new reasoning benchmarksAnthropic raises $4B Series EEU AI Act enforcement begins · June 2026NIST AI RMF — risk management framework publishedISO/IEC 42001 AI management standard now certifiableOpenAI o3 sets new reasoning benchmarksAnthropic raises $4B Series E

LlamaIndex

Free

Data framework for building LLM applications over your data

LlamaIndex · Frameworks

Visit Website

Quick Answer

LlamaIndex is data framework for building llm applications over your data, made by LlamaIndex. It is free and open source. Key uses: RAG over documents, Structured data querying, Multi-agent systems.

Last updated:

What is LlamaIndex?

LlamaIndex (formerly GPT Index) simplifies connecting custom data sources to LLMs. Provides data connectors, indexing strategies, and query engines for building RAG applications.

What can you do with LlamaIndex?

  • RAG over documents
  • Structured data querying
  • Multi-agent systems
  • Knowledge bases

Pros

  • Data-focused
  • Easy RAG setup
  • Many connectors

Cons

  • Less agent-focused than LangChain
  • Learning curve

What are the best alternatives to LlamaIndex?

Compare LlamaIndex Head-to-Head

Frequently Asked Questions about LlamaIndex

Is LlamaIndex free?

Yes, LlamaIndex is fully free and open source.

What is LlamaIndex used for?

LlamaIndex is used for: RAG over documents, Structured data querying, Multi-agent systems, Knowledge bases.

What are the best alternatives to LlamaIndex?

Top alternatives to LlamaIndex include LangChain, Haystack.

Details

Vendor

LlamaIndex

Category

Frameworks

Pricing Model

Free

Tags

FrameworkRAGPythonOpen-SourceData