You.com (default search)
Switches Chrome's default search engine to You.com, which returns chat-style AI answers from several AI models alongside web results.
Chrome extension
An unofficial add-on that shows a conversational Gemini answer in a panel beside your Google search results so you can compare both.
Search Everywhere with Gemini is an unofficial extension that shows a conversational AI answer from Google's Gemini next to your regular Google search results. It is for searchers who want to compare a chat-style reply with the usual list of links on one page.
Run a search on Google as usual and read the Gemini response shown in the panel beside the results.
It is a third-party add-on, not made by Google, and relies on access to Gemini, so changes on Google's side can affect it. Your search queries are passed to the AI service.