Is Google testing new ad formats in AI Mode?

Yes — a sitelinks-style ad format was spotted within Google AI Mode results and shared by Anthony Higman, per Search Engine Roundtable; Google has not confirmed the test.

Why would Google test sitelinks ads in AI Mode?

To compare click-through rates for different ad formats against the regular links already shown in AI Mode responses, per the spotted screenshot.

A serene image of a wooden pier extending into foggy, still waters. — Photo by wr heustis on Pexels

single-source — confirmation pending

Search Engine Roundtable · Oct 2 Oct 2 Google Search AEO

Google spotted testing sitelinks-style ads in AI Mode

A sitelinks-style ad format has been spotted within Google AI Mode results, shared by Anthony Higman and reported by Search Engine Roundtable on October 2, 2026. The format appears designed to let Google compare click-through rates for different ad layouts against the regular links already shown in AI Mode responses. Google has not confirmed the test, said how long it will run, or said how widely it is appearing.

Why it matters: It signals Google is still iterating on ad formats inside AI Mode rather than treating the current layout as settled, ahead of any confirmation of how it affects visibility for organic AI Mode links.

The record: Google Google AI Mode

Glossary: AI Mode

Via Search Engine Roundtable ↗

Posted to the wire October 2, 2026. Edited by Joe Balewski.

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Google spotted testing sitelinks-style ads in AI Mode

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