LangChain
Definition
An open-source framework for building applications powered by large language models, providing tools for chains, agents, and memory.In-Depth Explanation
LangChain simplifies LLM application development by providing abstractions for common patterns. It includes components for prompt templates, chains (sequences of calls), agents (autonomous decision-making), memory (conversation history), and integrations with vector stores and tools. It has become the most popular framework for building AI applications.
Real-World Example
Using LangChain to build a RAG chatbot that retrieves company documents and answers questions with citations.