Imagine seamlessly integrating your private data with Large Language Models (LLMs). LlamaIndex makes this possible. It connects your existing data sources - from APIs to PDFs - and organizes them for LLM use. With LlamaIndex, you get a powerful query interface, turning LLM prompts into context-rich responses. Whether you're building with LangChain, Flask, or ChatGPT, LlamaIndex fits right in. It's accessible for beginners and adaptable for experts, simplifying data ingestion and customization for your LLM applications.