The modern web is no longer static. Users expect intelligent, conversational, and context-aware experiences. As a leading Next.js development company, we’ve seen a paradigm shift: businesses are no longer asking if they should integrate AI, but how. This is where the powerful combination of Next.js and Retrieval-Augmented Generation (RAG) comes into play, enabling developers to build sophisticated web applications and even intelligent mobile applications with a shared AI backbone. This guide will walk you through building RAG and semantic search apps, turning your Next.js project into a dynamic knowledge source.