LangChain is an open-source system that simplifies the process of building applications based on large language models (LLMs) like GPT-4, Claude, and Llama.
Developers can incorporate LLMs with other sources of data, APIs, and memory storage through modular components and tools.
The aim of LangChain is to build context-aware, intelligent applications beyond simple text generation.
The framework is structured on 'chains,' which are sequences of pre-defined steps that assist an LLM in performing a task.