Hacker News (curated)new | past | comments | ask | show | jobs| show hidden

Halfway through it states “Let's mentally compose SVG.”

Is this a common thing? I’ve never seen it before, the “mentally compose”



It's common for models to produce a draft of the SVG part way through their reasoning. Here's Qwen3.8-Flash-Next doing that, for example: https://tools.simonwillison.net/markdown-svg-renderer#url=ht...

The open weight models let you see the full reasoning trace. Models from OpenAI, Anthropic, and Gemini tend to obscure or summarize the reasoning traces so you can't see exactly what they're doing. Here's Gemini 3.7 Flash which looks like it's doing something similar: https://tools.simonwillison.net/markdown-svg-renderer.html#u...

One of the step summaries includes this:

> I'm now detailing the pelican's anatomy within the SVG. I've sketched the main body outline, including coordinates for the tail, chest, neck, head, and massive beak with a pouch. I'm focusing on the position of the eyes and considering the positioning of the wings, with the foreground wing on the handlebar for a confident look.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact | github