Simon Willison’s Weblog

Newsletter

25th August 2026

Tool Buoyant Pigment — Pelican on a Bicycle — View a seeded generative watercolor painting of a pelican riding a bicycle. Adjust parameters like wash layers, edge bleed, ink wobble, and splatter to customize the artistic effects, or explore different seeds to generate entirely new compositions. Each painting combines layered transparent washes, hand-drawn ink details, and flicked paint splatters to create a unique illustration with watercolor aesthetics.

Inspired by Training AI to Paint with Code, in which Surya Narreddi used reinforcement learning to get Qwen 3.5 35B to produce beautiful watercolor style images using p5.js.

I prompted Claude Fable 5 on Max reasoning setting with:

Use p5js to draw a watercolor of a pelican riding a bicycle

It produces a slightly different image every time you run it.

Blotchy watercolor style illustration of a pelican riding a bicycle. Looks a little bit Quentin Blake.

This is a beat by Simon Willison, posted on 25th August 2026.

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe