Google is expanding ads in AI Overviews from mobile to desktop and testing ads in AI Mode.The expansion includes other AI-powered ad tools for automating ad creation and buying.Google's AI strategy aims to balance monetization with user experience.The ads are targeted to appear in search and shopping AI Overviews at the top of results.Google is also testing ads in AI Mode, integrated into its search page with Gemini AI chatbot.These ads aim to capture users conducting longer and exploratory queries.Google's large investments in AI infrastructure need to be monetized, with advertising playing a crucial role.Advertisers cannot directly choose placements in AI Overviews or AI Mode, Google pulls from existing search campaigns.Google is experimenting with AI tools like text-to-video and text-to-image generators for ads.Companies like Meta and Google are moving towards automating ad creation and buying processes through AI.