<ul data-eligibleForWebStory="true"><li>LangChain4j is a Java-based library for integrating large language models (LLMs) into applications.</li><li>The library has a modular structure allowing developers to choose components based on their needs.</li><li>The core module (langchain4j-core) provides essential abstractions like ChatModel and EmbeddingStore.</li><li>The main module (langchain4j) builds on the core with utilities like Document Loaders and AI Services.</li><li>Integration modules (langchain4j-{provider}) offer optional third-party integrations like LLM Providers and Embedding Stores.</li><li>LangChain4j aims to simplify LLM integration while providing flexibility for different use cases.</li><li>The library is designed for anything from basic LLM interactions to complex AI-augmented workflows.</li><li>Overall, the modular architecture of LangChain4j balances simplicity and flexibility.</li><li>Developers can customize dependencies based on their project requirements.</li><li>Understanding the structure helps in tailoring the library for lightweight LLM calls or advanced AI applications.</li></ul>

Understanding LangChain4j’s Modular Architecture: Core, Tools & Integrations

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