Closest I have is this page: https://simonwillison.net/tags/pelican-riding-a-bicycle/

Absolutely hilarious that Qwen 3.5 had a far better clock than Opus 4.6 each time I looked.

Not exactly what you asked for but try https://pelicans.borg.games/

AFAIK that model is pretty old, and it was explicitly trained for SVG generation. For other models the capability of generating SVGs of real stuff is accidental. Same as GPT-5.x and Sonnet 4.5+ being able to generate MIDI music.

is it a fine tune of some open source model?

It's generating a raster image and then using a tracing algorithm to turn it into an SVG, rather than generating an SVG via coding from the ground-up. If you put a raster image into Adobe Illustrator and use its image tracing you'll get a similar result.

This is also interesting: https://static.simonwillison.net/static/2025/pov-pelican-opu...

Uh, the GPT-5 clock is... interesting, to say the least.