TechFlame reports that, according to CNBC, OpenAI has hired Mike Liberator, the former financial director of XAI under Elon Musk, as the commercial finance officer for the AI startup to oversee its large-scale infrastructure spending. A company spokesperson said Liberator left his job in July of this year after only three months at xAI and officially joined OpenAI this Tuesday. He will report to CFO Sarah Friar and collaborate with Greg Brockman's team, which is responsible for managing the contracts and capital operations behind OpenAI's computing power strategy. This personnel appointment is the latest trend in the escalation of competition between OpenAI CEO Sam Ultrman and Musk. The two co-founded the OpenAI non-profit research lab in 2015, but as the company transformed into a rapidly growing commercial entity mainly invested by Microsoft, they have publicly broken up and become rivals in recent years.