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Orchestration

LangGraph

LangGraph is a library for building stateful, cyclic agent and workflow graphs on top of LangChain—suited to multi-step tools, human-in-the-loop approvals, and durable execution patterns that go beyond linear chains.

API availableOpen sourceagentsgraphsorchestrationpythontypescriptworkflows
FeaturedUpdated todayInformation score 5

Key insights

Concrete technical or product signals.

  • Choose LangGraph when your assistant must loop, branch, or pause for approvals rather than single-pass chains.
  • Pairs naturally with LangChain primitives—teams already on LangChain adopt fastest.

Use cases

Where this shines in production.

  • Customer-support agents with tool loops and escalation states
  • Research agents that revisit retrieval based on intermediate results
  • Workflows requiring checkpointing and resume after failures

Limitations & trade-offs

What to watch for.

  • More moving parts than simple LCEL chains—budget for testing state transitions and observability.
  • Rapid ecosystem evolution; pin versions and run integration tests on upgrades.

Models referenced

Declared model dependencies or integrations.

GPT-4o, Claude 3.5 Sonnet

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