Free tutorial: build a Stable Diffusion XL image generator with Bubble (no-code tool)

This paragraph introduces the video's focus on teaching viewers how to create an AI image generator using Stable Diffusion XL, Excel, and Bubble, a no-code tool for building web apps. The tutorial will guide from a blank app to a functional one, connecting to the Stability API for Stable Diffusion XL, which is a more powerful version of Stable Diffusion. The emphasis is on functionality rather than design, allowing viewers to integrate this into their own apps and learn the process of building an app with AI.

The speaker explains the process of creating a developer account on the Stability platform and accessing API keys, which are crucial for connecting the Bubble app to Stable Diffusion. They guide through the steps of navigating the Stability documentation, creating an API key, and setting up the API connector plugin in Bubble. The paragraph also covers the initial setup of an API call in Bubble, including authentication using the Bearer token and preparing the API call body with dynamic values for user input.

This section delves into the specifics of generating images using the Stable Diffusion XL API within the Bubble app. The speaker demonstrates how to use the 'text to image' function of the API, copying the CURL sample from the documentation to create an API call in Bubble. They also discuss the importance of maintaining valid JSON syntax and dynamically inserting user prompts into the API call. The paragraph concludes with the successful initialization of the API call, generating a test image.

The focus shifts to building the user interface in Bubble, starting with a new page dedicated to Stable Diffusion XL. The speaker guides through setting up a column layout, adding a container for inputs and outputs, and creating a text element for user prompts. They also detail the process of adding an input field and a button for generating images, emphasizing the importance of responsive design and proper layout settings in Bubble.

This paragraph covers the implementation of dynamic image display in the Bubble app. The speaker explains how to create a custom state to store the generated image URL and how to display this image dynamically on the app's interface. They also detail the workflow for the 'Generate Image' button, including setting up the API call action, dynamically inputting the user's prompt, and handling the image URL response. The paragraph concludes with a discussion on the importance of modifying the URL format for proper display.

The speaker introduces the addition of a loading element to indicate image generation progress in the app. They guide through setting up a spinner icon that shows when the image is being loaded and hides once the image URL is set. The paragraph also covers debugging the workflow, identifying issues with the visibility of elements and ensuring the image displays correctly after generation. The speaker demonstrates how to inspect elements and troubleshoot common issues in the Bubble app.

In the final paragraph, the speaker wraps up the tutorial by testing the app with different prompts and showcasing the generated images. They highlight the improved quality of images from Stable Diffusion XL compared to earlier models and encourage viewers to experiment with more detailed prompts. The speaker also promotes further learning through a course on building apps with AI, offering resources for those interested in integrating AI APIs into their projects.