Dev.to
7/10/2026

LangChain & LangGraph Concepts You Should Know
Short summary
LangChain combines LLMs with tools and memory for automated workflows. LangGraph adds dynamic decision-making and branching execution, enabling autonomous agents. Master these concepts to build production-ready AI applications.
- •Chains sequence steps; tools let LLMs interact with external systems
- •Memory persists information; agents make autonomous tool-selection decisions
- •LangGraph enables branching, looping, and fault-recovery in complex workflows
Generated with AI, which can make mistakes.
Is this a good recommendation for you?



