A U.S. federal court has dismissed a lawsuit brought by Elon Musk’s artificial intelligence venture xAI against OpenAI, concluding that the company failed to provide sufficient evidence that confidential information was improperly obtained or used.
The ruling came from a federal judge in San Francisco, who found that xAI could not establish that OpenAI encouraged former xAI engineer Xuechen Li to disclose proprietary information connected to Grok, xAI’s chatbot platform. The court also found no indication that OpenAI personnel were aware of any alleged disclosure of confidential material.
The dismissal was issued with prejudice, meaning the case cannot be refiled. The judge noted that further amendments to the complaint would serve no purpose, having already rejected an earlier version of the lawsuit months ago.
The dispute centered on allegations that OpenAI gained access to sensitive xAI information through employees who left the company. In its revised complaint, xAI narrowed its focus to Li’s recruitment process and a presentation he delivered while being considered for employment.
According to xAI, OpenAI sought insights into the development of Grok 4, released in July 2025, because it was struggling to match the system’s capabilities in advanced reasoning and certain reinforcement-learning techniques. The company argued that Li possessed valuable knowledge in those areas and that OpenAI deliberately pursued access to that expertise.
The court was unconvinced.
In its opinion, the judge emphasized that discussions about previous work experiences are a standard feature of hiring processes across industries. Simply asking a candidate to explain projects they worked on does not, by itself, suggest an attempt to obtain protected trade secrets.
The ruling stated that accepting xAI’s theory could expose employers to legal risk whenever they questioned prospective hires about their professional backgrounds.
OpenAI maintained throughout the litigation that Li never became an employee of the company and that it never acquired any confidential xAI information. The company reiterated its position after the dismissal, describing the lawsuit as another chapter in Musk’s broader campaign against OpenAI.
The decision marks Musk’s second courtroom defeat involving OpenAI within a month. Earlier, a separate jury rejected claims tied to a massive lawsuit alleging that OpenAI and its leadership had abandoned the organization’s original nonprofit mission for financial gain.
While the trade-secret case has now been closed, xAI’s legal fight with Li remains active in a separate proceeding. Li has denied any wrongdoing.
The latest ruling removes another legal challenge facing OpenAI as competition intensifies among major players in the rapidly evolving artificial intelligence industry.
