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    LangChain4j

    Master LLM Integration in Java

    A comprehensive learning path from basics to production. Learn to build chatbots, RAG systems, and autonomous agents using LangChain4j.

    10 Levels
    30+ Topics
    Beginner to Advanced

    Learning Path

    1

    Foundations

    Understand what LangChain4j is and why it exists

    3 topics
    2

    Chat Models & Prompts

    Build your first AI-powered Java app

    3 topics
    3

    Memory & Conversations

    Make conversations stateful

    3 topics
    4

    Tools & Function Calling

    Let LLMs call Java methods

    3 topics
    5

    Embeddings & RAG

    Talk to your own data 📄

    5 topics
    6

    AI Services

    Write interfaces, not prompts 🔥

    3 topics
    7

    Agents

    Autonomous decision-making 🤖

    3 topics
    8

    Spring Boot Integration

    Production-ready apps

    3 topics
    9

    Local & Open Models

    Reduce cost, improve privacy

    2 topics
    10

    Testing, Evaluation & Production

    Ship with confidence 🚀

    3 topics

    Ready to Start?

    Begin with Level 1 to understand the fundamentals of LangChain4j and build your first AI-powered Java application.