boltTLDR
Google is deploying generative AI in Performance Max to automatically resize video ads into missing aspect ratios, with an opt-out deadline of September 4th.
Search Engine Land reports that Google Ads is rolling out a generative AI feature for Performance Max campaigns that extends existing videos into missing aspect ratios, enabling ads to run across more inventory without manual resizing. The capability builds on Google's existing video format conversion tools and aims to maximize reach while improving the viewing experience, though advertisers concerned about brand consistency or product accuracy can opt out by September 4th or adjust settings anytime within their accounts.