LlamaIndex

Also known as: LlamaIndex.ai, GPT Index

In one sentence

An open-source framework for building LLM applications with data connectors, indexing, and retrieval—particularly strong for RAG (Retrieval Augmented Generation) systems.

Explain like I'm 12

Like a librarian for AI—it helps organize your documents so ChatGPT and other AI can quickly find the exact information they need to answer questions.

In context

LlamaIndex makes it easy to connect your private data (PDFs, databases, APIs) to LLMs. It handles chunking documents, creating embeddings, storing them in vector databases, and retrieving relevant context when users ask questions.