Google has begun rolling out Gemini 3 as the default model powering AI Overviews, extending the company’s most advanced reasoning capabilities deeper into the core search experience.
The update also introduces a direct path for users to ask follow-up questions from an AI Overview and continue the interaction in AI Mode, carrying context forward rather than restarting the query.
Gemini 3 becomes the foundation for AI Overviews
Gemini 3, which launched in late 2025, previously powered Google’s AI Mode experience. With this change, the same model now underpins AI Overviews in markets where the feature is available.
According to Google, the shift brings more advanced reasoning and response quality directly onto the results page for questions where AI-generated summaries are shown. The company says AI Overviews now reach more than one billion users globally.
By standardizing on Gemini 3, Google aligns the behavior of AI Overviews more closely with AI Mode, reducing differences between summary-style responses and conversational exploration.
Seamless transition into conversation
Alongside the model update, Google is adding the ability to ask follow-up questions directly from an AI Overview. Selecting a follow-up moves the user into AI Mode while preserving the context of the original response.
Google says testing showed users preferred this flow over restarting queries or navigating separate experiences. The goal is to support both quick answers and deeper exploration without forcing users to choose between formats.
The company describes the result as a single, continuous experience, where simple queries resolve quickly while more complex tasks naturally expand into conversation.
Implications for visibility and citations
Since AI Overviews launched, Google has steadily increased the depth and continuity of AI-powered responses. Moving AI Overviews to Gemini 3 reinforces that direction.
For publishers and marketers, model changes can influence which sources are cited, how responses are structured, and how often users click through to external sites. Gemini 3’s broader query fan-out and reasoning patterns may shift citation dynamics compared to earlier models.
Rollout timing and what’s next
Google says the Gemini 3 update and AI Mode transition are beginning to roll out immediately, with availability varying by region.
The company has previously indicated plans for automatic model routing, where simpler queries are handled by faster models and more complex questions are sent to Gemini 3. Whether that logic will extend beyond today’s default change for AI Overviews has not been specified.
For now, the update signals a continued move toward keeping search interactions inside AI-powered flows, with fewer hard boundaries between results, summaries, and conversation.
