Apple has introduced Ferret-UI, a groundbreaking development in artificial intelligence that enhances Siri's capabilities by enabling it to understand and interact with the layout of apps on an iPhone screen with multimodal capabilities. This innovation, known as a Multimodal Large Language Model (MLLM) with Grounded Mobile UI Understanding, is designed to execute precise referring and grounding tasks specific to user interface screens, while also interpreting and acting upon open-ended language instructions. The introduction of Ferret-UI, which will also be presented at the International Conference on Learning Representations (ICLR), positions Apple as a frontrunner in the AI assistant space. This advancement could significantly improve user experience by allowing Siri to more effectively navigate and use applications, potentially transforming how users interact with their devices.