Anthropic switched to HTML artifacts because they handle complex content better...

https://domgodwinson38.gumroad.com/p/how-to-use-live-artifacts-for-pipeline-tracking-in-a-dev-team

Anthropic switched to HTML artifacts because they handle complex content better than Markdown, making planning, code reviews, and design systems clearer and easier to navigate. This change cut output costs to just $0.08 per file and slashed latency by 5x