Claude Opus draws photorealistic image stroke-by-stroke via agent sketchbook, nailing iridescence and dew
RileyRalmuto · x · 2026-09-25
Riley Ralmuto demoed Claude Opus using an "agent sketchbook" to draw, with results so convincing — correct iridescence and dew droplets — that he insisted it's not a photograph.
The mechanism: when an agent uses the sketchbook, it performs the closest thing to hand-drawing an agent can — instructing every single stroke, like someone without hands directing another person to draw. This stroke-by-stroke pipeline is fundamentally different from standard text-to-image models.
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