Basically, I want to make an artistic QR code of a website I made for my girlfriend, and then ship her a jigsaw puzzle of the QR code art.

There’s lots of services online that generate AI image QR codes, but the problem is they all max out at like 1024x1024. I need something at least 5x bigger than that for a physical, 1000 piece jigsaw puzzle. If I use an upscaler, it looks uncanny when you zoom in.

Basically, I want to make something like this, but much higher res: https://i.imgur.com/TeDvEgL.png

Any ideas?