Apple has partnered with Google to use its Gemini model to power a new iteration of Siri, with the custom model set to run on Apple devices and the company's private cloud compute. The multiyear partnership is a significant development in the AI space, with Apple acknowledging Google's technology as the foundation for its future AI features. The deal is seen as a major indicator of growing trust in Google's AI agenda. The partnership will lead to a major Siri upgrade expected later this year.