[Concepts](https://langchain-ai.github.io/langgraph/concepts): LLM should read this page when exploring LangGraph architecture, when seeking production deployment options, or when differentiating between open-source and platform features. LangGraph is an open-source framework for building agentic applications with graph-based workflows. The conceptual guide covers key components including graph primitives, agentic patterns, multi-agent systems, breakpoints, human-in-the-loop integration, time travel debugging, persistence, memory, and streaming. LangGraph Platform offers commercial deployment options: Self-Hosted (Lite/Enterprise), BYOC, and Cloud SaaS.

