Apple Inc.’s top executive in charge of artificial intelligence models is leaving for Meta Platforms Inc., another setback in the iPhone maker’s struggling AI efforts.

Apple's top executive in charge of artificial intelligence models, Ruoming Pang, is leaving the company for Meta Platforms, Bloomberg News reported on Monday, citing people with knowledge of the matter.

Apple Inc. today appealed a €500 million fine that it had received in the European Union last year over the App Store’s terms of service. The company filed the challenge with the General Court, the bloc’s second highest court.

Apple took a challenge against EU regulators to Europe's second highest court on Monday after they fined it 500 million euros ($587 million) earlier this year for breaching landmark rules aimed at curbing the power of Big Tech.

Apple appealed a $580 million fine from the European Commission, which claimed that the company broke the rules controlling how app developers could communicate with users on Monday.