Alphabet Inc (NASDAQ:GOOG)'s Google confirmed on Monday that it has entered a multi-year agreement with Apple Inc (NASDAQ:AAPL, XETRA:APC) to power the iPhone-maker's artificial intelligence technology, including its Siri voice assistant. “After careful evaluation, Apple determined that Google's AI technology provides the most capable foundation for Apple Foundation Models and is excited about the innovative new experiences it will unlock for Apple users,” Google said in a post on X, the social media platform formerly known as Twitter.