This is SVG, but recent Anthropic models have got extremely good at other forms of visual data.

Here's a Blender model I had Claude Opus 5.5 create: https://tools.simonwillison.net/blender-viewer?url=https%3A%...

And here's some animated pixel art by Opus 5.5: https://tools.simonwillison.net/kakapo-party

And some Monkey Island style music (Opus can compose music too): https://tools.simonwillison.net/scrimshaw-jukebox

Anthropic's models do all of this by outputting code. GPT-6 Astra has similar capabilities - I got this Blender model using that: https://tools.simonwillison.net/blender-viewer?url=https%3A%...

Pardon, I have a lot of questions about that Scrimshaw music text format. It's clever. Did you invent it, and is it specifically intended to be written to by LLMs? Is the editor/player LLM-coded as well, and was this its recommendation for a format that would be easy for LLMs to write? I'm wondering why this instead of say, asking it to write a .MOD file.

the "monkey island"-musc makes me so sad. why would anyone make an AI do this when it took such craft. i hope you all die :'(

This is great! Love the pixel art and tunes.

They are really good at generating artifacts, which are windows within the replies containing all kind of visualization, often interactive.

They are still not great at SVG. I just asked Opus and Fable to add a background to an SVG and the results were, well, not great.

Tried it with GPT-6 Astra with Ultra but the outcome was underwhelming with Blender. Maybe it was my prompting ¯\_(ツ)_/¯