preprints.org > computer science and mathematics > software > doi: 10.20944/preprints202411.0566.v1 (registering DOI)

Preprint Article Version 1 This version is not peer-reviewed

Version 1 : Received: 6 November 2024 / Approved: 7 November 2024 / Online: 8 November 2024 (10:26:18 CET)

LangChain is a rapidly emerging framework that offers a ver- satile and modular approach to developing applications powered by large language models (LLMs). By leveraging LangChain, developers can sim- plify complex stages of the application lifecycle—such as development, productionization, and deployment—making it easier to build scalable, stateful, and contextually aware applications. It provides tools for han- dling chat models, integrating retrieval-augmented generation (RAG), and offering secure API interactions. With LangChain, rapid deployment of sophisticated LLM solutions across diverse domains becomes feasible. However, despite its strengths, LangChain’s emphasis on modularity and integration introduces complexities and potential security concerns that warrant critical examination. This paper provides an in-depth analysis of LangChain’s architecture and core components, including LangGraph, LangServe, and LangSmith. We explore how the framework facilitates the development of LLM applications, discuss its applications across multi- ple domains, and critically evaluate its limitations in terms of usability, security, and scalability. By offering valuable insights into both the capa- bilities and challenges of LangChain, this paper serves as a key resource for developers and researchers interested in leveraging LangChain for innovative and secure LLM-powered applications.

LangChain; Large Language Models; LLM Applications; Modular Framework

Computer Science and Mathematics, Software

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