What Is LangGraph?

We have explored how LangChain allows developers to build applications powered by large language models by chaining a sequence of tasks, similar to assembling a row of dominoes, where each task follows the previous one in a neat, predictable order. By now, we can confidently say that it’s ideal for scenarios where the steps are well-defined.

But what if our application needs to be more flexible? What if the flow of tasks isn’t always linear but must adapt based on real-time inputs and changing conditions? This is where LangGraph comes in.

Introduction to LangGraph

LangGraph is a specialized library within the LangChain ecosystem, designed for building stateful systems, including multi-agent and non-agent systems, that handle complex, nonlinear workflows. While LangChain excels at creating linear chains of tasks, LangGraph uses a graph-based approach, allowing applications to dynamically adapt to varying inputs and conditions with ...