This story is available exclusively to Business Insider subscribers. "OpenAI is waging a coordinated, unfair, and unlawful campaign: OpenAI is targeting those individuals with knowledge of xAI's key technologies and business plans." "This new lawsuit is the latest chapter in Mr. Musk's ongoing harassment," OpenAI said in a statement to Business Insider. A source with knowledge of the issue also told Business Insider that Li, the engineer in question, never worked at OpenAI. Attorneys for xAI did not immediately respond to a request for comment from Business Insider.