Exhibit No. 012 · Apps
The prompt behind the most-viewed AI demo of 2025: a macOS-style desktop with working apps, from a text editor to a video editor.
> Design and create a web os like mac os full functional features from text editor to file manager to paint to video editor and all important mac os pre bundled software. Use whatever libraries to get this done but make sure I can paste it all into a single HTML file and open it in Chrome. Make it interesting and highly detailed, shows details that no one expected, go full creative and full beauty in one code blockVery long single-file output: a window manager, a file system and many small apps that all have to actually work.
One attempt per test, with no edits after running. Where a first attempt didn’t work, the test was answered once more and the exhibit says so; answers that still don’t work are not shown. Run inside a Claude Code agent session, which includes its own system prompt, rather than the raw API.
Save the answer as a .html file and open it in a browser to compare it with the one above.