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TutorialsSimon Willison·· 2 hours ago

Simon Willison Asks Claude Opus 5.5 High to Paint a Photo on Canvas

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Who
Simon Willison
What
shares a prompt a prompt for Claude Opus 5.5 High to build a canvas-based photo painter
Quote
Prompt to Claude Opus 5.5 High : Build an artifact where you open a photo and it rapidly (in a few seconds) paints a version of that photo using a canvas element and simulated paintbrush

What happened

Simon Willison shared a prompt asking Claude Opus 5.5 High to build an artifact that opens a photo and paints a version of it in a few seconds using a canvas element and simulated paintbrush. He also linked to an earlier experiment asking Claude Fable to simulate a watercolor illustration with P5.js.

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See the full storySimon Willison Shares a Prompt for a Canvas-Based Photo Painter

The story so far

Simon Willison shared a prompt asking Claude Opus 5.5 High to build an artifact that opens a photo and paints a version of it using a canvas element and a simulated paintbrush. The prompt calls for the painting to take a few seconds; it describes the requested behavior, rather than establishing the artifact’s performance. Willison also linked to an earlier experiment in which he asked Claude Fable to simulate a watercolor illustration with P5.js.

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