Claude Fable 5.2 is being shown making paintings without an image model, by writing code that places every brushstroke itself. Jake Eaton, who posted the examples on X, says Claude did not render or trace anything in advance: each piece is a Python program driving a simulated paint engine.
The headline piece is a near-photographic scene of an empty parking-garage level, with a lone shopping cart casting a shadow on a sunlit wall. Eaton says it took roughly 700,000 simulated strokes, far above his usual range. Typical programs run to a thousand or two thousand lines and use a few thousand strokes, and he says pushing the count higher gave mixed results.
Why attempt it? Eaton says his project started from a common complaint about paintings by Claude Opus 5.5, that they merely copied existing art. His answer was to have Fable 5.2 invent fictional artists, each with a history and a style that fits a period. He then nudged the results with comments, and Claude rewrote the brush and paint engines to match; pictures he liked got a deeper pass.
A separate test by Michael (@mgrczyk) removes the safety net. Another user’s video of a sunrise bird shows the same model working under a harsher rule: every mark is final, with no undoing or editing. Like a human painter, it has to commit. Michael’s view is that physical limits are what make model art feel convincing.
Fable 5.2 is the model Anthropic launched on 10 November at a lower price than Fable 5.1. The painting work is individual experiments posted on X, not an Anthropic product feature, and no release of the paint-engine code has been announced.
