OpenAI won dismissal Monday of a trade-secret lawsuit brought by Elon Musk's xAI, after a federal judge found that the amended complaint still did not connect OpenAI to any alleged theft. U.S. District Judge Rita Lin dismissed the case without leave to amend, ending xAI's claim under the federal Defend Trade Secrets Act. The order followed Musk's May 18 trial loss against OpenAI and OpenAI CEO Sam Altman in a separate charity case.

Key Takeaways

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Lin rejects inducement theory

Lin's seven-page order in the Northern District of California found that xAI did not plausibly allege OpenAI told or encouraged former xAI senior engineer Xuechen Li to disclose confidential material. The decision came four weeks after a jury rejected Musk's separate charity case against OpenAI.

xAI's amended complaint focused on a presentation Li allegedly gave while OpenAI was recruiting him. The company argued that OpenAI targeted Li because he had worked on reinforcement learning and post-training techniques for Grok 4, and that asking him about his prior work amounted to asking for xAI methods.

Lin rejected that reading. She wrote that "merely asking Li to discuss his previous work" as part of routine hiring did not support a plausible inference that OpenAI induced him to reveal confidential or secret material.

Slide-deck allegations fall short

The court also found that xAI had not shown OpenAI engineers knew, or should have known, that any information in Li's interview presentation was an xAI trade secret. Lin noted that xAI did not file the slide deck with its amended complaint and did not clearly allege whether Li displayed it during the interview or used it as notes.

A confidentiality label on the first page was not enough, the judge found, because xAI had not alleged that the label identified the material as belonging to xAI or that Li warned interviewers not to share it. Lin wrote that xAI's theory required several inferences about what OpenAI engineers saw, understood and knew during recruitment.

Order cites passive receipt

Even if Li had disclosed protected information, Lin said xAI still had not stated a misappropriation claim against OpenAI. The order distinguished passive receipt from active acquisition, disclosure or use under the Defend Trade Secrets Act.

"Mere possession of trade secrets is not sufficient to constitute misappropriation," Lin wrote. OpenAI called the lawsuit "another front in Mr. Musk's ongoing campaign of harassment" in a statement quoted by Reuters. The wire service said it had sought comment from xAI and its lawyers.

Li case continues separately

Li remains a defendant in xAI's separate August 2025 action. Courthouse News Service reported that Lin later ordered him to turn over personal devices and temporarily restricted work related to generative AI; Li has denied wrongdoing.

OpenAI has maintained that Li never worked for the company and that it never acquired xAI secrets. After Monday's order, the case against OpenAI is closed at the pleading stage unless xAI seeks appellate review.

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Frequently Asked Questions

What did the judge decide?

U.S. District Judge Rita Lin dismissed xAI's trade-secret lawsuit against OpenAI without leave to amend, finding the amended complaint still did not plausibly connect OpenAI to alleged misappropriation.

Why did xAI sue OpenAI?

xAI accused OpenAI of obtaining confidential information tied to Grok through former xAI employees, with the amended complaint focusing on former senior engineer Xuechen Li and an interview presentation.

What was Lin's reasoning on hiring interviews?

Lin wrote that asking a candidate to discuss prior work is routine and did not, without more, support an inference that OpenAI induced disclosure of confidential material.

Did the order decide Li's separate case?

No. xAI sued Li separately in 2025. Monday's order closed the pleading-stage case against OpenAI, not the separate litigation over Li.

What happens next?

The case against OpenAI is closed unless xAI seeks appellate review. The separate Li litigation and Musk's broader disputes with OpenAI remain outside this dismissal.

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Editor-in-Chief and founder of Implicator.ai. Former ARD correspondent and senior broadcast journalist with 10+ years covering tech. Writes daily briefings on policy and market developments. Based in San Francisco. E-mail: editor@implicator.ai