Anthropic switched to HTML artifacts for planning, code reviews, design...

https://ace-wiki.win/index.php/Why_Did_the_HTML_vs_Markdown_Debate_Blow_Up_on_Hacker_News%3F

Anthropic switched to HTML artifacts for planning, code reviews, design systems, and reports because they load 5 times faster than Markdown files. This speed boost helps teams stay focused and move quickly without waiting on slow rendering. With over 4