LlamaIndex

OfficialRAG & Retrieval

Data framework for connecting LLMs to external data. Specializes in ingestion, indexing, and retrieval with advanced RAG patterns, query engines, and agent workflows.

by LlamaIndex37.8k starsMITUpdated Apr 2026

Installation

Install
pip install llama-index

Language support

PythonTypeScript

Supported LLMs

OpenAIAnthropicGoogleOllamaCohereHugging Face

Features (9)

data_connectors
indexing
query_engines
agents
retrieval
reranking
structured_output
evaluation
observability

Details

Author
LlamaIndex
Category
RAG & Retrieval
Languages
2
Features
9
Stars
37.8k
License
MIT
Status
Official