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Meta's stock rose after the company introduced Muse, a new personal AI agent aimed at addressing a major investor concern about the company's AI product roadmap. Analysts said the launch could mark the start of a new product cycle that markets have not yet fully priced into the stock. The move adds to ongoing investor debate over how Meta's AI investments will translate into consumer-facing products and revenue, following a period in which the company's heavy AI spending had drawn scrutiny from some investors.