The finance chief of Elon Musk's xAI, Mike Liberatore, has left the artificial intelligence startup after just a few months on the job, the Wall Street Journal reported on Wednesday, citing people familiar with the matter. Liberatore's departure comes amid intensifying competition among AI players such as OpenAI, Google and Anthropic, which are pouring resources into training and deploying advanced systems. Liberatore had been xAI's chief financial officer since April and left around the end of