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LlamaIndex

Data framework for connecting custom data sources to LLMs

FrameworkOpen SourceMature

About

LlamaIndex (formerly GPT Index) is a data framework for LLM applications. It excels at ingesting, structuring, and accessing private or domain-specific data. Provides data connectors, indices, query engines, and agents optimized for RAG use cases.

Strengths

  • Best-in-class data ingestion
  • Excellent RAG capabilities
  • Clean API design

Limitations

  • Less flexible for non-RAG use cases
  • Smaller agent ecosystem
  • Python-first

Use Cases

RAG applicationsDocument Q&AKnowledge basesData analysis

Integrations

OpenAIAnthropicChromaDBPineconeWeaviatePostgreSQL

Comparisons