Anthropic switched to HTML artifacts for internal docs because they cut output...
https://www.cast-bookmarks.win/anthropic-switched-to-html-artifacts-for-internal-planning-code-reviews
Anthropic switched to HTML artifacts for internal docs because they cut output costs by 92%, saving $0.08 per document compared to Markdown. The richer format handles code reviews and design systems smoothly, improving clarity and speeding up workflows