Anthropic switched to HTML artifacts because they load 5 times faster than...

https://www.kilobookmarks.win/anthropic-switched-to-html-artifacts-for-internal-planning-code-reviews

Anthropic switched to HTML artifacts because they load 5 times faster than Markdown, making code reviews and reports feel seamless. With over 4.4 million views internally, HTML’s rich formatting keeps designs clear and planning smooth