LangGraph: Agent Orchestration Framework for Reliable AI Agents
Balance agent control with agency
Design agents that reliably handle complex tasks with LangGraph, an agent runtime and low-level orchestration framework.
Trusted by companies shaping the future of agents
How does LangGraph help?
Guide, moderate, and control your agent with human-in-the-loop
Prevent agents from veering off course with easy-to-add moderation and quality controls. Add human-in-the-loop checks to steer and approve agent actions.
Build expressive, customizable agent workflows
LangGraph’s low-level primitives provide the flexibility needed to create fully customizable agents. Design diverse control flows — single, multi-agent, hierarchical — all using one framework.
See different agent architectures
Persist memory for future interactions
LangGraph’s built-in memory stores conversation histories and maintains context over time, enabling rich, personalized interactions across sessions.
#### First-class streaming for better UX design
Bridge user expectations and agent capabilities with native token-by-token streaming, showing agent reasoning and actions in real time.
Foundation: Introduction to LangGraph
Learn the basics of LangGraph in this LangChain Academy Course. You'll learn about how to leverage state, memory, human-in-the-loop, and more for your agents.
Developers trust LangGraph to build reliable agents
Build and ship agents fast with any model provider. Use high-level abstractions or fine-grained control as needed.
“LangChain is streets ahead with what they've put forward with LangGraph. LangGraph sets the foundation for how we can build and scale AI workloads — from conversational agents, complex task automation, to custom LLM-backed experiences that 'just work'. The next chapter in building complex production-ready features with LLMs is agentic, and with LangGraph and LangSmith, LangChain delivers an out-of-the-box solution to iterate quickly, debug immediately, and scale effortlessly.”
LangGraph FAQs
How is LangGraph different from other agent frameworks?
Other agentic frameworks can work for simple, generic tasks but fall short for complex tasks bespoke to a company’s needs. LangGraph provides a more expressive framework to handle companies’ unique tasks without restricting users to a single black-box cognitive architecture.
Does LangGraph impact the performance of my app?
LangGraph will not add any overhead to your code and is specifically designed with streaming workflows in mind.
Is LangGraph open source? Is it free?
Yes. LangGraph is an MIT-licensed open-source library and is free to use.
Learn about LangSmith
LangSmith, our agent engineering platform, helps developers debug every agent decision, eval changes, and deploy in one click.