How to Create Open-Source AI Apps with LangChain

LangChain is an open-source AI framework that simplifies building custom AI applications using Large Language Models (LLMs). It provides various modules/components to enhance the capabilities of LLMs' problem-solving strategies. This post includes a tutorial on how to build AI applications using LangChain, complete with installing the framework, loading a PDF, splitting its content, storing it in a database, and retrieving accurate responses.