Craig Federighi, Apple's Senior Vice President of Software Engineering, has been added as a document custodian in Elon Musk's xAI antitrust lawsuit against Apple and OpenAI. The court denied a similar request for Tim Cook, finding insufficient evidence that the CEO possessed unique relevant information not already available through other sources.

The lawsuit alleges that Apple's partnership with OpenAI to integrate ChatGPT into Siri violates antitrust laws by giving preferential treatment to competing large language models. xAI claims this arrangement influences App Store rankings to disadvantage rival AI applications. Apple has consistently denied these accusations, particularly rejecting claims about exclusive dealing arrangements.

Additional court rulings included ordering Apple to produce documents related to its Google partnership concerning AI exclusivity clauses, while denying requests for iPhone sales data and internal AI usage policies. OpenAI secured a partial victory requiring Musk to turn over emails from Tesla and SpaceX accounts. All document productions are due by June 17, 2026, except Musk's which is due June 3, 2026.

The case represents a significant escalation in antitrust scrutiny of AI partnerships, with potential implications for how tech giants collaborate on artificial intelligence features while maintaining competitive app store ecosystems.