How to build a multimodal AI app with voice and vision in Next.js

Large language models have evolved from processing only text to becoming multimodal, enabling them to handle inputs such as images, audio, and video, thus mirroring more natural human communication. This tutorial demonstrates how to build multimodal AI interactions using Next.js and Google's Gemini LLM, focusing on handling audio, images, video, and file uploads. Readers are guided on setting up a project with Next.js, using the Gemini API to manage different input types, and incorporating functionalities like voice recording and file uploads through a user interface. The tutorial covers creating API endpoints for sending data to Gemini, which supports various file formats and allows for diverse input combinations in a single request, showcasing how these capabilities can enhance AI applications. The article also encourages exploration of further possibilities, such as real-time video streaming and complex reasoning through multiple input combinations, offering developers a comprehensive introduction to building versatile AI-powered applications.