Elon Musk’s A.I. firm is best known for its Grok chatbot. Photo by Jared Siskin/Patrick McMullan via Getty Images
Mike Liberatore, chief financial officer of Elon Musk’s xAI, has left the company after just three months, the Wall Street Journal first reported. His exit adds to a wave of high-profile turnover at the startup. Launched by Musk in 2023, xAI is best known for its Grok chatbot. The company’s technology has quickly caught up to competitors, but Grok has also made headlines for controversial outputs and now for a string of executive departures.
Liberatore joined xAI in April after eight years at Airbnb, where he was vice president of finance and corporate development. He also previously worked at PayPal and eBay. At xAI, he was reportedly involved in fundraising and oversaw data center expansion efforts in Memphis, Tenn. Liberatore left in July, according to the Journal.
Around the same time, Raghu Rao, xAI’s former commercial lead, also departed. Rao had joined in April following roles at Zoom, Ernst & Young and Deloitte.
Another loss came this summer when Robert Keele, a member of xAI’s legal team, stepped away from his role as general counsel. “Working with Elon on this tech, at this time, was the adventure of a lifetime,” Keele wrote in an Aug. 5 X post. He said he was leaving to spend more time with his family. His farewell included a Grok-generated video of a man in a suit shoveling coal, which Keele said was the chatbot’s response to the prompt: “What’s it like to lead legal at xAI?”
Musk built xAI in just a few years with a founding team largely drawn from OpenAI and Google. Of the dozen co-founders, at least three have since left. Kyle Kosic is now at OpenAI, while Christian Szegedy became chief scientist at Morph Labs. Both departed last year.
The most recent co-founder to exit was Igor Babushkin, who led engineering teams at the firm before leaving in August to launch his own venture capital firm focused on A.I. startups and agentic systems. “We wouldn’t be here without you,” said Musk in an Aug. 13 post responding to Babushkin’s announcement.
Not every departure has been as cordial. Last month, xAI filed a lawsuit against Xuechen Li, a former member of xAI’s technical team, accusing him of stealing trade secrets to take to a new role at OpenAI. Li, who joined xAI in February 2024 and helped develop Grok, allegedly uploaded confidential data before accepting an offer from OpenAI in August. On Sept. 3, xAI won a court order temporarily blocking Li from starting the new job.
