Anthropic switched to HTML artifacts because they cut output costs by 8 cents...

https://wiki-coast.win/index.php/How_Do_I_Build_a_Throwaway_UI_with_Claude_for_a_Specific_Problem%3F

Anthropic switched to HTML artifacts because they cut output costs by 8 cents per document and handle 4.4 million views smoothly every month. HTML lets teams build richer, interactive planning docs, clearer code reviews, and flexible design systems