Weeks earlier, the 41-year-old CEO of Meta had publicly boasted that his company’s new AI model, which would power the latest chatbots and other cutting-edge experiments, would be a “beast.” Internally, Zuckerberg told employees that he wanted it to rival the AI systems of competitors like OpenAI and be able to drive features such as voice-powered chatbots, people who spoke with him said.
But at Meta’s AI conference that month, the new AI model did…








