LangChain is an open-source framework that simplifies the creation of applications using large language models (LLMs). It provides a standard interface for chains, integrations with other tools, and end-to-end chains for common applications.
For example, a developer could use LangChain to build a chatbot that can understand and respond to customer inquiries. By leveraging the power of a large language model, the chatbot can provide accurate and personalized responses to customers, improving their overall experience.