Elon Musk’s xAI recently offered employees payments of $420 to hand over their completed tax returns for use in training Grok, according to a new report from Bloomberg. But that same report notes employees haven’t seen a penny of that promised cash. And it’s not clear when it’s coming. Grok has been lagging in the AI chatbot race, with OpenAI’s ChatGPT, Microsoft’s CoPilot, Anthropic’s Claude, and Google’s Gemini leading in widespread adoption in the U.S.