Walmart CEO Doug McMillon highlighted the company's new generative AI search capabilities on a recent earnings call, posing a potential challenge to Alphabet's online dominance. Walmart is aiming to users' shopping experience by integrating generative AI into its search capabilities, moving towards becoming a one-stop shop for needs rather than a place for individual item searches. Generative AI in retail is changing traditional search, offering more specific answers and personalized experiences that could increase direct loyalty to retailers.