Meta Stock Slides Despite Q1 Earnings Beat. AI Costs Rising As Guidance Disappoints. Investor’s Business DailyMeta plunges 16% on weak revenue guidance even as first-quarter results top estimates CNBCPayoff for Meta’s big bet on AI will take time, Zuckerberg warns Business InsiderInstant Reaction: Meta’s Outlook Spooks Investors BloombergMeta’s Costs Rise Rapidly as Zuckerberg Vows to Keep Spending on AI Arms Race The Wall Street Journal