At last year's I/O conference, Google introduced AI Overviews, which have driven a major shift in Google search and in the internet's information environment at large. AI Mode promises an even deeper, more chatbot-like experience right in the search bar.

Google on Tuesday unleashed another wave of artificial intelligence technology to accelerate a year-old makeover of its search engine that is changing the way people get information and curtailing the flow of internet traffic to websites.