>(The images on his blog do have alt text, but it's just the LaTeX code, which isn't much better.)

LLMs are extremely good at outputting LaTeX, ChatGPT will output LaTeX, which the website will render as such. Why do you think LLMs have trouble understanding it?

I don't think LLMs will have trouble understanding it. I think people using screen readers will. …oh I see, I accidentally deleted the part of the comment about that.

But the people writing the web page extraction pipelines also have to handle the alt text properly.