LangGraph
Stateful, graph-based orchestration for LLM workflows with deterministic checkpoints.
LangGraph is a graph-based orchestration library that pairs naturally with LangChain runnables. It is the default choice for teams that want explicit control over state transitions and human-in-the-loop checkpoints.
Strengths. Mature checkpointing, large community, broad runtime support.
Weaknesses. API surface is large; the learning curve is real.
Use it when you need durable, replayable graphs with an audit trail.