Robots & gadgets · Long runs

Autonomous watercolor painting by Claude overnight

Design engineer Nil asked Claude to paint an autumn tree overnight; around 4am it stopped to titrate its own paint, diluting red, sienna and madder on a second palette, and woke to a watercolor made with 303 brush marks over 4.5 hours.

Made with

Claude

Role

Design engineer at Glif

Posted

6 November 2026

nil@dhvanil

i went to bed and asked claude to paint an autumn tree overnight.

at around 4am, it realised that it didn't have some shades -- so it stopped and titrated its own paint: diluting red, sienna and madder step by step on a second palette, then measuring each pocket from a photo.

woke up to this beautiful watercolor painting. 303 brush marks, took about 4.5 hours 🍂 (still working on the speed)

6 Nov 2026View on X