Google (GOOG, Financial) is rolling out major updates to AI Overviews, upgrading it with Gemini 2.0 and launching an experimental AI Mode that could reshape how users interact with search.

AI Overviews, first introduced in the U.S. last year, delivers AI-generated summaries before traditional search results. Now, Gemini 2.0 is powering these responses, improving complex queries like coding, advanced math, and multimodal searches.

Google is also making AI Overviews available to more users, including teens, who can now access it without signing in.

The biggest change is AI Mode, an experimental feature in Google Labs. Built with a custom version of Gemini 2.0, it's designed for deeper research, comparisons, and reasoning-based queries.

Starting March 5, Google One AI Premium subscribers will get the first invitations to test AI Mode.

Google says it aims to provide AI responses whenever possible, but when confidence is low, traditional web search results will still appear. The company is also testing ways to improve accuracy and add more visuals like images and videos as it refines the feature.