How to create an AI app with Upstash, Next.js and Replicate

The article provides a detailed guide on implementing rate limiting in a Next.js application using Upstash Redis, with a focus on rebuilding the AI image-generating app lofianime.com. It explains the necessity of rate limiting to manage API costs when using hosted AI models and outlines the steps to set up a Next.js project with Upstash and Replicate SDKs. The process involves creating a Redis database, configuring API routes to limit requests, and building a user interface to display AI-generated images. The guide also covers handling POST requests with rate limiting logic and rendering images based on user input, along with potential enhancements like adding user authentication and personalized rate limiting. The article concludes with the successful creation of a rate-limited AI image generator and suggests further improvements, such as UI updates to indicate remaining image generation quotas.