Directory / LangGraph
LangGraph
Verified
Graph runtime for agents, from the LangChain project.
LangGraph is a library and runtime for building stateful, multi-step agents as graphs. It is the orchestration piece of the LangChain ecosystem, distinct from LangSmith (observability) and from LangChain’s original chain API. You bring models and tools.
- Model independence
- Multi-model
- Deployment
- Cloud, Self-hosted
- Open source
- Yes
- License
- See repository (MIT for the library in public materials we checked)
- Pricing model
- Mixed
- Added / updated
- 19 Aug 2026 / 19 Aug 2026
www.langchain.com/langgraph · Docs · Source
Editorial take
LangGraph is a real orchestrator if your unit of work is an agent graph. It is not a job queue for PR pipelines — that is Temporal or Actions. Do not list it as LangChain and do not assume LangSmith is required. The graph will not sandbox the tools you attach.
Strengths
- Explicit state and edges for multi-step agents.
- Library you can run yourself; model-agnostic.
- Separate URL and job from LangSmith.
Limitations
- Ecosystem gravity toward LangSmith and LangChain abstractions.
- Not durable execution in the Temporal sense unless you add that.
- Easy to build an unreadable graph that only the author can debug.