Anthropic switched to HTML artifacts instead of Markdown because it speeds up...

https://www.bookmark-tango.win/anthropic-switched-to-html-artifacts-for-internal-planning-and-reviews-because

Anthropic switched to HTML artifacts instead of Markdown because it speeds up their workflows and improves clarity. With HTML, they cut output errors down to just $0.08 per document and handle 4.4 million views monthly without breaking formatting