LlamaIndex
LlamaIndex is a Python library designed to build data pipelines and applications for large language models (LLMs) by connecting custom data sources to LLMs. It provides tools for data ingestion, indexing, and querying, enabling developers to create context-aware applications like chatbots, search engines, and knowledge bases. The library supports various data formats and integrates with popular LLMs such as OpenAI's GPT models.
Developers should learn LlamaIndex when building applications that require LLMs to access and reason over private or domain-specific data, such as internal documents, databases, or APIs. It is particularly useful for creating retrieval-augmented generation (RAG) systems, where it helps index data efficiently and retrieve relevant context for LLM queries, improving accuracy and reducing hallucinations. Use cases include enterprise chatbots, document analysis tools, and personalized AI assistants.