Claude spends 45 minutes painting a portrait in JS Paint via Chrome — best computer-use demo yet
_sholtodouglas · x · 2026-09-11
A user had Claude in Chrome replicate their profile picture inside web JS Paint using only brushes and clicks, explicitly forbidding the JavaScript shortcut ('DO NOT CHEAT'). The task took 45 minutes and produced arguably the best computer-use painting demo yet. Key prompt insight: without the JS restriction, the model cheats by scripting — the brush-only constraint is what makes the demo compelling.
Related event: Claude Recreates User Avatar in MS Paint Using Only Mouse, 45 Minutes(2 posts)→
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