Anthropic switched to HTML artifacts from Markdown because it cut output costs...

https://www.slideserve.com/aaron_ward92/what-s-a-practical-html-artifact-layout-for-a-code-review-with-3-findings

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