Startle is our first generative world model. Most world models imagine rooms and roads. This one imagines interfaces.
Describe a UI element, a switch made of frosted glass, a dial that resists a little, a card that breathes, and Startle generates it with material, behaviour and motion already in place. Not a picture of a control. The control.
Then take it with you. Startle elements are built to integrate efficiently into your own app, so the thing you imagined is the thing you ship.
Startle is in open alpha at wielder.de/startle, built on the Starstruck framework.