Anthropic switched to HTML artifacts from Markdown to speed up internal...
https://wiki-byte.win/index.php/What_Are_the_Best_Carve-Outs_Where_Markdown_Stays_the_Right_Default%3F
Anthropic switched to HTML artifacts from Markdown to speed up internal workflows like planning, code reviews, and reports. Using HTML cut rendering latency by 5x, making content load almost instantly