What Google AI Mode is, how it answers, and how pages get linked from it

AI Mode is a separate mode of Google Search for questions that would otherwise take several searches, such as exploring a new concept or comparing detailed options. A person asks a question, gets a written answer with links to pages that support it, and can keep asking follow-up questions.

Google introduced it in March 2025 as an experiment in Labs. The announcement framed it as a response to power users who wanted AI answers for more of their searches than AI Overviews covered.

At launch it ran on a custom version of Gemini 2.0.

AI Mode uses what Google calls query fan-out. It breaks one question into many related searches, runs them at the same time across subtopics and data sources, and combines what it finds into one response. Google's optimization guide gives an example: a question about getting rid of lawn weeds might fan out into searches for the best lawn herbicides, removing weeds without chemicals, and preventing weeds in the first place.

The answer is grounded in Google's search index. Google's core ranking systems retrieve the pages, the model reads specific information on them, and the response links to the pages that support it.

Google says this surfaces a wider and more varied set of links than a traditional search. Because AI Mode and AI Overviews can use different models and techniques, the same question can produce different answers and different links in each.

Google's AI features guide is direct about this. To appear as a supporting link in AI Mode, a page must be indexed, eligible to show in Google Search with a snippet, and meet the normal technical requirements for Search. There are no further technical requirements.

Meeting them doesn't promise that Google will crawl, index or show the page.

The practical work is ordinary SEO. Google lists checking that crawling is allowed in robots.txt and through any CDN or hosting layer, and making content easy to find through internal links. Its optimization guide adds that original content from first-hand experience stands out, because the AI reads many sources, and a rewrite of what is already published adds nothing new. Google also says that what some people call AEO or GEO is, from its point of view, still SEO.

Search Console now separates out generative AI visibility. The Search Generative AI performance reports, launched in June 2026 and available to all sites since 31 August 2026, show how often a site's URLs appeared in features such as AI Overviews and AI Mode.

The reports break this down by page, country, device and date, down to hourly granularity. The same impressions are still counted in the overall performance report, so the new view is a slice of that total, not an addition to it.