Google AI Overviews are AI-generated answers shown above the regular search results, summarising information from across the web and linking to a small set of cited sources.
If you have searched Google lately and read a paragraph of answer before reaching any links, you have used an AI Overview. Google introduced the feature at its I/O conference in May 2024, built from an earlier experiment called the Search Generative Experience, and it now appears on a large share of searches. It is the most visible change to the Google results page in twenty years.
How it works: when you search, Google's Gemini models read across multiple web pages, synthesise an answer, and present it at the top of the page with a handful of source links beside or beneath it. The user gets a response without clicking anything. That is the appeal for searchers, and the problem for businesses.
The problem is measurable. Pew Research Center found that when an AI summary appeared, users clicked a search result about 8% of the time, against 15% when no summary appeared, and barely 1% clicked a link inside the Overview itself. Roughly one in five searches in that study produced an AI summary. The takeaway is not subtle: a results page with an AI Overview sends far fewer clicks to websites than one without.
This is the part competitor glossaries are slow to update, so it is worth being current. AI Overviews are live for Australian searchers, and Google's more conversational AI Mode launched in Australia on 8 October 2025, giving multi-part questions a chat-style answer instead of a list of links. Google has also started placing ads inside AI Overviews in twelve countries, Australia included. The AI layer is not an experiment any more. It is where a growing share of search now ends.
So the goal moved. For twenty years the job was to rank in the ten blue links. Now the job is to be one of the few sources an AI Overview cites, because being cited is the new being clicked. The signals that earn a citation are the ones AI Search Optimisation is built around: a clear, direct answer placed near the top of the page, clean structure and schema, and strong, consistent entity signals so the AI is confident about who you are. They overlap heavily with classic SEO and with Answer Engine Optimisation, but they reward extractable, genuinely useful content over keyword-stuffed pages.
What this looks like in practice: someone weighing up "do I need a buyers agent in Melbourne" now reads an AI Overview first. The agency cited in that summary enters the consideration set. The ten links below it get a fraction of the attention they once did. Showing up in the Overview is not a bonus surface any more. For many queries, it is the surface.
Our SEO & AI Visibility service is built to earn citations in AI Overviews and the AI answer layer around them.