simonwillison.nettoolQuick Study
Quick Study is a browser artifact built by Claude Opus 5.5 (High) from a single prompt. The user opens a photo and the page repaints it in a few seconds with a simulated paintbrush on a canvas element. Simon Willison links it to an earlier experiment in which Claude Fable simulated a watercolor illustration with P5.js. The post gives the prompt but no code walkthrough.
TL;DR Shows a one-prompt Claude Opus 5.5 artifact that repaints an uploaded photo with a simulated brush on a canvas.
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- Canvas-based simulated painting
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- Simon Willison
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