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War rooms, group chats, and video games: Inside Elon Musk’s AI startup

At xAI’s Palo Alto headquarters, engineers cheered.It was February 2, and they’d just received a memo from Elon Musk, informing them the AI startup would be acquired by his rocket company, SpaceX. In a Slack channel for the team that trains the company’s chatbot Grok, memes flowed, and a few…