Fly.io has introduced enterprise-grade GPUs, making it an ideal platform for deploying AI applications. In this post, the author demonstrates how to build a Discord bot using Fooocus, an open-source project that combines the best features of Midjourney and Stable Diffusion. The bot allows users to generate images based on textual prompts and can be deployed on Fly.io's GPU hardware. The author provides detailed instructions for deploying both the API server and Discord bot applications, as well as tips for optimizing performance and managing costs.