Anthropic switched to HTML artifacts because they cut output costs to just...

https://www.mikegingerich.com/blog/anthropic-adopts-html-over-markdown-for-workflows/

Anthropic switched to HTML artifacts because they cut output costs to just $0.08 per document and serve over 4.4 million views smoothly. HTML lets their teams create rich, consistent layouts for planning, code reviews, design systems, and reports