If you're looking to build a production-ready AI application that enables users to "chat" with your company's private data, then you'll need to master LangChain—a premier AI development framework used by global corporations and startups like Zapier, Replit, Databricks, and more. This guide is an indispensable resource for developers who understand Python or JavaScript but are beginners eager to harness the power of AI.
Authors Mayo Oshin and Nuno Campos demystify the use of LangChain through practical insights and in-depth tutorials. Starting with basic concepts, this book will show you step-by-step how to build a production-ready AI chatbot trained on your own data. After reading this book, you'll be equipped to:
- Understand and use the core components of LangChain in your development projects
- Harness the power of retrieval-augmented generation (RAG) to enhance the accuracy of LLMs using external, up-to-date data
- Develop and deploy AI chatbots that interact intelligently and contextually with users
- Utilize LangChain Expression Language to create custom, efficient AI operational chains
- Integrate and manage third-party APIs and tools to extend the functionality of your AI applications
- Learn the foundations of LLM app development and how they can be used with LangChain
Mayo Oshin is a tech entrepreneur, AI advisor and angel investor, specializing in AI apps trained on private data. Mayo was an early developer contributor and advocate for the open source LangChain library and an early pioneer in the popular AI 'chat' with data movement (5+ million people reached through his thought-leadership ideas so far). Mayo has consulted with, advised, and trained hundreds of engineers and product managers at various leading institutions, including Amazon, LinkedIn, Evercore, Visa, and BCG. Nuno Campos is a founding software engineer at LangChain, Inc. Nuno has a decade of experience as a Python and JavaScript software engineer, architect and open-source maintainer. He has worked for various tech startups in software engineering and data science roles. He holds an MSc in Finance.
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