Billionaire Elon Musk is asking banks working on SpaceX's planned IPO to ‌buy subscriptions to Grok, his AI chatbot, NYT reported. Some banks have agreed ​to adopt the chatbot and have begun ​integrating it into their IT systems. Notably, Morgan Stanley, Goldman Sachs, JPMorgan Chase, Bank of America and Citigroup are the banks chosen for the $75-billion IPO.