Google adds Gemini guidance to demand Gen ads

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Google is adding Gemini-powered creative guidance to Demand Gen campaigns, giving advertisers automated recommendations for optimizing image and video assets for YouTube. The update comes as Google expands Demand Gen into a fuller replacement path for display advertising, making the format more central to Google Ads planning across YouTube, Shorts, Discover, Gmail, Maps and the Google Display Network.

The most immediate change is creative workflow. Google says Demand Gen will support broader video resizing, including vertical to square, vertical to landscape and square to landscape. For advertisers managing YouTube ads and social-style video campaigns, that reduces the friction of adapting one creative idea for multiple screens and placements.

The AI layer is the bigger signal. “Gemini will soon provide automated recommendations about how to optimize your creative for YouTube,” Google said. That moves creative optimization closer to the campaign setup process, where performance teams can test more formats without waiting on repeated manual edits.

The commercial logic is hard to ignore. Google cited Measured data saying 72% of incremental conversions on YouTube come from new customers. Google Ads Help also says Demand Gen can reach up to 3 billion monthly active users across Google surfaces, with more than 50 billion global daily views on Shorts alone.

Google is also adding Web to App Acquisition Measurement, allowing advertisers to see when Demand Gen campaigns drive new app users through installs. That gives marketers a cleaner view of whether upper-funnel visual ads are creating measurable customer acquisition, not just cheaper reach.

The takeaway for brands is practical: Demand Gen is becoming Google’s AI-led bridge between YouTube creative and performance advertising. Advertisers should audit video assets, test aspect ratios early and treat creative quality as a measurable growth lever, not a final polish layer.