Anthropic switched to HTML artifacts for internal planning, code reviews,...
https://collinscoolthoughts.raidersfanteamshop.com/how-do-i-keep-artifact-generation-time-down-when-html-takes-5x-longer
Anthropic switched to HTML artifacts for internal planning, code reviews, design systems, and reports because HTML loads 5 times faster and handles complex layouts better than Markdown. This boost means teams spend less time waiting and more time building