Judge dismisses xAI trade secret lawsuit against OpenAI

A federal judge has dismissed a trade secret lawsuit brought by Elon Musk's artificial intelligence company, xAI, against rival OpenAI, delivering a second major legal defeat to Musk in his ongoing feud with his former company. U.S. District Judge Rita Lin in San Francisco dismissed the case with prejudice on Monday, June 15, 2026, ruling that xAI failed to prove its claims and that allowing further amendments would be futile.

The lawsuit, originally filed in September 2025, accused OpenAI of improperly obtaining confidential information related to xAI's Grok chatbot. The case centered on a presentation given by former xAI senior engineer Xuechen Li while he was being recruited by OpenAI. xAI alleged that OpenAI targeted Li specifically to gain access to proprietary details about Grok 4's reinforcement learning and post-training systems, claiming OpenAI was lagging in those areas.

In her ruling, Judge Lin found that xAI did not provide sufficient evidence to show that OpenAI induced Li to disclose trade secrets or that OpenAI engineers even knew Li might have revealed confidential information. The judge wrote that asking job candidates to discuss their prior work is a routine...