LangGraph

What it is
LangGraph is a library from the LangChain team that lets you build agents and workflows using a stateful graph abstraction. Each node in the graph can be an LLM call, retriever, or any LangChain component.

Key features

• Graph-based logic: Create multi-step workflows with branches, memory, and loops.
• Built on LangChain: Seamlessly integrates with LangChain components.
• Concurrency support: Run parts of the graph in parallel.
• Fine control: Handle state transitions and failures easily.
• Perfect for agents: Design complex tool-using agents with long-term memory.