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The next big AI fight might happen in your shopping cart

Walmart's AI shopping assistant is called Sparky.Scott Olson/Getty ImagesMajor retailers, such as Walmart and Sephora, are integrating AI into their shopping experiences.Tech companies, including OpenAI and Google, are also racing to win in AI-driven online shopping.Today’s AI assistants can help with product recommendations, checkout, and customer service.Retail is becoming a…