LangGraph

LangGraph

LangGraph is a library for building stateful, multi-actor applications with LLMs, built on top of LangChain.

Free + paidWebAPICLIOpen sourceKoreanLLM-basedMultimodal
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Overview

LangGraph is a library for building stateful, multi-actor applications with LLMs, built on top of LangChain. It allows for cyclic graphs, which are essential for agentic workflows involving loops and conditional logic. It features built-in persistence for state management, human-in-the-loop interaction, and seamless integration with the LangChain ecosystem. As of 2026, it is a leading framework for production-grade autonomous agents and complex multi-agent orchestration.

Key features

  • Cyclic Graph Support
  • State Persistence & Checkpointing
  • Human-in-the-loop Workflows
  • Multi-agent Orchestration
  • LangSmith Integration
  • Real-time Streaming
  • Time Travel Debugging

Pricing

Free + paidStarting price: Free (open source)
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Verified on:

Use cases

  • Autonomous Coding Agents
  • Complex Customer Support Bots
  • Multi-step Data Analysis
  • Interactive AI Game Engines

Who it is for

AI EngineersSoftware DevelopersData scientists

Integrations

LangChainLangSmithOpenAIAnthropicTavily

How we verified this

Company, pricing, and feature details come from the primary sources below and our latest verification pass. When sources disagree, the official source and the most recent check win.

Last verified 08/30/2026Verified sources: 1

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