Anthropic switched to HTML artifacts because they cut output costs by $0.08 per...

https://technivorz.com/is-html-a-good-default-for-design-systems-compared-to-markdown-docs/

Anthropic switched to HTML artifacts because they cut output costs by $0.08 per use and handle 4.4 million views smoothly. HTML makes internal planning, code reviews, design systems, and reports clearer and easier to navigate