Google Unveils Gemini‑Powered Demand Gen Tools and Video Resizing for YouTube Ads

At the Cannes Lions festival, Google announced a suite of new tools designed to boost the effectiveness of its Demand Generation (Demand Gen) advertising platform on YouTube. The updates introduce Gemini‑powered insights that provide automated creative recommendations for image and video assets, helping advertisers choose visuals that drive higher performance. In addition, Google has expanded its video resizing options, adding vertical‑to‑square, vertical‑to‑landscape, and square‑to‑landscape transformations so that ads can be optimised for any screen orientation. The company also rolled out Web‑to‑App Acquisition Measurement, allowing advertisers to track app installs that result from Demand Gen campaigns and gain a complete view of return on investment.

Demand Gen has become a key driver of growth on YouTube, with data showing that 72 % of incremental conversions come from new customers. By offering more flexible creative formats and AI‑driven recommendations, Google aims to capture conversions across a wider range of devices and improve creative effectiveness. The Gemini insights are set to be integrated into the new Insights Finder, which delivers granular U.S. trend data and brand pulse metrics in real time. Partners can also access the Content & Creator Insights API, which supplies richer data on creators and audiences to support more precise media planning.

These enhancements signal a broader shift toward AI‑driven analytics in digital advertising. Advertisers are encouraged to update their campaigns to take advantage of the new aspect ratios and Gemini recommendations. By combining automated creative guidance with detailed measurement, Google hopes to unlock further growth for brands on YouTube and provide a clearer understanding of how creator influence and trend dynamics shape campaign success.