Google AI Mode Ads Expand | Cross-Border Sellers Act Now

Google is scaling ads inside AI Mode, its Gemini-powered Search experience, to more users and queries, with rollout now live in Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore, and planned for Brazil, Mexico and the United Kingdom. US users will see multiturn ads in follow-up queries. Alphabet's stock fell sharply after the Q3 2025 earnings call, where Philipp Schindler acknowledged that AI Mode monetizes lower than traditional Search. For sellers, the operational question is no longer whether AI search will carry ads, but how quickly product placements in it will become a paid channel.

The clearest seller impact is in product listings. The news reports that click-through rates for sponsored and organic product list items in AI Mode are already similar. This means Google Merchant Center feed quality now affects visibility in a new surface, not just Shopping tabs. Sellers should audit titles, GTINs, product attributes, availability and pricing consistency in Merchant Center before the expansion reaches their target markets.

Specifically for sellers in the listed markets, the cost side needs close tracking. Because Google itself says AI Mode monetization per query is lower, bid competition may be uneven during early rollout. Industry practice suggests running AI-surface campaigns as separate experiments with tight ROAS thresholds, while using automated bidding with conversion value rules. Multiturn ads in the US add a second exposure point during follow-up queries, which may change how shoppers compare products. Sellers can use AI tools such as LLM-based query clustering on Search Terms reports to identify conversational intents that new placements will capture.

The broader signal is that AI search is absorbing more shopping sessions. Google reports that AI Mode and AI Overviews keep users on Google about three times as long as traditional search, which implies more product discovery happening before a click reaches a seller's site. NBC News attributed the stock decline mainly to weaker-than-expected Q3 earnings rather than AI Mode alone, and Google has not published detailed AI Mode revenue figures, so the monetization trajectory remains unproven. Search advertising still represents roughly half of Alphabet's revenue, meaning the company has strong incentives to keep expanding these placements.

Recommendations: Audit Merchant Center feeds within 2 weeks; set separate campaign budgets for AI-surface tests with a 4-week review; monitor CPC and ROAS weekly in listed markets. Avoid cutting traditional Shopping budgets until AI-surface ROAS is validated against baseline data.