Walmart Inc WMT is quietly rewriting the retail playbook with AI "super agents" and digital twins — tools built to streamline operations and reshape the shopping experience. Against Amazon.com Inc.’s AMZN steadily expanding AI portfolio, Walmart's bold ecosystem pivot may catch the e-commerce giant off guard.Track WMT stock here.Walmart's AI Overtake: The Rise of Super AgentsWalmart is rolling out four AI "super agents" — Sparky (shoppers), Marty (suppliers), Associate (employees) and Developer — built on a ...