What is LangGraph?
LangGraph is a production-grade agent orchestration framework from the LangChain team — built on a graph-based stateful workflow model.
Definition
LangGraph is the orchestration framework most production AI agents in 2026 are built on. Built by the LangChain team but architecturally distinct, LangGraph models agent workflows as graphs — nodes are functions or LLM calls, edges are conditional transitions, state is passed explicitly through the graph. Built-in features: checkpointing (resume after failure), human-in-the-loop (pause for approval), streaming, and tight integration with LangSmith for observability. At Paisol, LangGraph powers ~70% of our production AI agent deployments.
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