Ask most AI chatbots to build you a custom chatbot and you'll have to leave the chat window or jump into a seperate builder interface. But, if you ask Claude, it just does it — live, in the same browser window, in about ten seconds.
This is the remarkable trick behind what Anthropic calls Artifacts with nested API calls — known among power users as “Claude in Claude.” It’s one of the rare AI features that actually feels new, and most people have no idea it exists.
