Apple has filed a lawsuit against OpenAI in a U.S. District Court, accusing the company of stealing trade secrets to advance its AI hardware initiatives.

The suit alleges OpenAI recruited former Apple employees to access confidential data. Apple is seeking an injunction, the return of its intellectual property, and damages.

This legal action marks a significant escalation between the two tech giants, who previously collaborated on integrating ChatGPT into Apple's Siri assistant.

The lawsuit emerges as Apple CEO Tim Cook is scheduled to retire from his position in September 2026.