As OpenAI was ironing out a new deal with Microsoft in 2016 — one that would nab the young startup critical compute to build what would become ChatGPT — Sam Altman needed the blessing of his biggest investor, Elon Musk.“$60MM of compute for $10MM, and input from us on what they deploy in the cloud,” Altman messaged Musk in September 2016, according to newly revealed emails. Microsoft wanted OpenAI to provide feedback on and promote (in tech circles, “evangelize”) Microsoft AI tools like Azure Ba...