App Creator now uses Runway-Gen-4-Turbo by default to create apps with video generation features.
Example prompt for App Creator: Make an app that brings photos to life with cinematic camera movements and atmospheric effects. The app should let users upload a photo and describe how they want the camera to move through the scene.
App Creator now always edits the latest version of your app code and no longer supports editing older versions. This helps App Creator avoid issues where code edits could fail due to incorrectly specified parameters.
App Creator is now powered by Claude Sonnet 4. It edits rather than rewrites code more frequently, makes less unsolicited edits, and creates apps with improved UI.
App Creator now uses GPT-Image-1 by default to create apps with image generation features.
Example prompt for App Creator: Make an app that turns photos into 3D chibi anime style images. The app should use AI to craft a detailed chibi-style description before bringing it to life.
You can now remix eligible canvas apps using App Creator to customize them into your own unique versions.
Apps with remix enabled show a “Remix” button in the header of the app. Clicking on “Remix” takes you to a new chat with App Creator to customize the app.
Creators of canvas apps have the option to control whether their apps can be remixed by others.
Apps created before April 21, 2025, have Remix enabled by default. Remix can be disabled in the app settings.
Added better support for libraries that use Web Workers and WebAssembly, making it easier to build more powerful applications with less friction.
Previously, using these libraries triggered a confirmation message that required users to allow access to external resources. Now these libraries work directly without the confirmation prompt.
You can now upload images as attachments directly to App Creator and use them in your app, making it easier to customize your app’s design and experience (Example).