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LangGraph

✓ Verified

Graph-based framework for controllable, stateful AI agents

Updated Dec 7, 2025
AI Framework/LibraryOpen SourceAll platforms
Last reviewed: Dec 7, 2025Details verified against vendor changelogs and hands-on usage.
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Pricing and features change frequently—confirm on the vendor site.

About

LangGraph is an open-source framework in the LangChain ecosystem for building stateful, multi-step agents with controllable graphs (single, multi-agent, hierarchical flows). It supports human-in-the-loop interrupts, streaming, memory, and tool use, and can be deployed via LangGraph Platform or self-hosted OSS.

Key Features

  • ✓Graph-based agent architecture (single, multi-agent, hierarchical)
  • ✓Stateful execution with memory and persistence
  • ✓Branching and conditional control flows
  • ✓Tool use and streaming of intermediate steps
  • ✓Human-in-the-loop interrupts and rollbacks
  • ✓Deploy via LangGraph Platform or self-host

Use Cases

  • →Complex multi-step AI agents
  • →Stateful conversation systems
  • →Workflow automation with branching
  • →Decision tree AI systems
  • →Advanced agentic applications

Technical Details

Languages

PythonJavaScript/TypeScript

AI Models

Any LLM

Integrations

LangChainLangSmithAll LLMs

Frequently Asked Questions

What is LangGraph?

LangGraph is an open-source framework in the LangChain ecosystem for building stateful, multi-step agents with controllable graphs (single, multi-agent, hierarchical flows). It supports human-in-the-loop interrupts, streaming, memory, and tool use, and can be deployed via LangGraph Platform or self-hosted OSS.

Is LangGraph free?

Yes, LangGraph is open source and free to use. Full framework, Graph-based workflows, Stateful agents

What programming languages does LangGraph support?

LangGraph supports 2+ programming languages including Python, JavaScript/TypeScript.

What AI models does LangGraph use?

LangGraph is powered by Any LLM.

What platforms does LangGraph support?

LangGraph is available on All platforms.

What can LangGraph do?

LangGraph provides agentic/autonomous mode. Key features include: Graph-based agent architecture (single, multi-agent, hierarchical), Stateful execution with memory and persistence, Branching and conditional control flows.

Pricing

Free (Open Source)

$0
  • •Full framework
  • •Graph-based workflows
  • •Stateful agents
  • •Branching logic

Company

Name
LangChain
Founded
2022
Location
San Francisco, CA
Users
Growing community

Links

GitHub →Twitter →Discord →

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