Agreed. It's far from solved. Modern LLMs still generate pelican bike SVGs with obvious errors:
* some omitted the bottom of the diamond which connects from the pedals to the rear wheel
* some added an extra connection from the pedals to the front wheel, making it impossible to steer
* none could align the head tube with the fork
* none added a correct offset to the fork
* none could generate the chain properly in a way that attaches to the two sprockets correctly
I mean just look at these:
* Grok 4.5: https://s3.eu-west-1.amazonaws.com/images.dylancastillo.co/p...
* GPT 5.6 Terra: https://s3.eu-west-1.amazonaws.com/images.dylancastillo.co/p...
* Sonnet 5: https://s3.eu-west-1.amazonaws.com/images.dylancastillo.co/p...
what's fable at, does anyone know?
https://simonwillison.net/2026/Jun/9/claude-fable-5/
The bike is generally okay, apart from medium which derped hard. Max has correct diamond, correct head tube, and so on. Only nitpicks are that the front fork offset isn't there and the chain doesn't touch the rear sprocket correctly.