Generative AI is reshaping advertising by enabling faster creation of ad copy, visuals, and even video, giving teams more options at scale. It allows for hyper-personalized ads tailored to individuals in real time, improving engagement and conversion. Campaigns can now self-optimize with AI-driven testing, targeting, and budget adjustments. This shift makes advertising more iterative and data-driven, blending creativity with analytics. For product managers, success requires a mindset focused on experimentation, collaboration, and guiding AI responsibly to amplify human creativity.