Anthropic switched to HTML artifacts from Markdown because it cut output costs...
https://www.list-bookmarks.win/anthropic-switched-to-html-artifacts-because-they-cut-output-costs-to-just
Anthropic switched to HTML artifacts from Markdown because it cut output costs by 92%, saving about $0.08 per page. HTML also loads 5 times faster, making internal planning, code reviews, design systems, and reports smoother for the whole team