Google just made its biggest Search upgrade in months, switching to Gemini 3 as the default AI model powering AI Overviews globally. The company's also rolling out a new conversational feature that lets you ask follow-up questions directly from AI Overviews, creating what VP of Product Robby Stein calls a "fluid experience" between quick answers and deeper AI conversations. The update went live today across Google's global search footprint.
Google just flipped the switch on what might be its most significant Search evolution since AI Overviews launched. Starting today, the company's Gemini 3 model powers every AI Overview globally, and you can seamlessly transition from those AI-generated snapshots into full conversational mode without losing context.
The changes land as Google doubles down on its vision for Search as what VP of Product Robby Stein describes as an "effortless" way to explore and understand information. According to the company's official blog post, the upgrades address a fundamental tension in how people use Search: sometimes you need a quick sports score, other times you're diving deep into complex topics.
"People come to Search for an incredibly wide range of questions," Stein wrote. "For complex questions or tasks where you need to explore a topic deeply, you should be able to seamlessly tap into a powerful conversational AI experience."
The Gemini 3 integration represents Google's latest attempt to keep pace in the AI search race, where competitors like OpenAI with SearchGPT and Microsoft with Copilot have been aggressively pushing conversational search experiences. By making Gemini 3 the default, Google's betting its latest model can deliver what it calls "best-in-class AI responses" without users needing to explicitly opt into experimental features.
But the more interesting play here is the conversational handoff. Previously, jumping from an AI Overview to a deeper conversation meant context switching and starting fresh. Now, when an AI Overview appears on your search results page, you can ask follow-up questions that maintain the full context of what you've already learned. Google's calling this AI Mode, and it's designed to feel like a natural extension of the initial search rather than a separate experience.
