Google has rolled out a significant overhaul to Search, making Gemini 3.5 Flash the default model in AI Mode globally and expanding agentic search and generative UI features across the platform.[1] This represents one of Google's largest Search redesigns in years—and a material shift in how answers reach users.
What changed: AI Mode, which generates answers directly rather than surfacing traditional blue links, is now the primary path for many search interactions. The move to the faster Gemini 3.5 Flash model means Google is optimising for speed and task completion over raw capability, whilst agentic features allow the AI to take actions (booking, comparing, purchasing) within Search itself. This compounds the existing trend of AI-generated answers pushing organic links further down the page.
What this means for citation: If your content was already at risk of being excluded from AI overviews, this accelerates that dynamic. Google's shift toward task-completing agents means your site is now competing not just against other sources, but against AI systems that act on behalf of users. To be cited, your content must: (1) be factual, structured, and directly answer specific queries; (2) cover the full scope of user intent (including comparisons, steps, and context); (3) be discoverable and properly marked for AI indexing. Sources cited in AI Mode responses still get attribution, but citation rates will depend on whether your content serves the agent's task goals, not just user curiosity.[1][3]
The window to optimise your site for AI citation—rather than traditional ranking—has narrowed considerably.