LangGraph is a versatile Python library designed for stateful, cyclic, and multi-actor Large Language Model (LLM) applications. This tutorial will give you an overview of LangGraph fundamentals through hands-on examples, and the tools needed to build your own LLM workflows and agents in LangGraph.

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Real Python

LangGraph is a powerful Python library designed for building stateful, cyclic, and multi-actor large language model (LLM) applications. It is built on top of LangChain and enables the creation of sophisticated workflows, incorporating state graphs with nodes, conditional edges, and cycles. This tutorial guides through setting up LangGraph, defining state graphs, and building AI agents for tasks like email parsing, decision-making, and interacting with APIs.

LangGraph: Build Stateful AI Agents in Python – Real Python