- Joanna Stern spent a week testing iOS 27’s new Siri AI and found it to be very good.
- Siri’s highly personalized and informed responses impressed Stern, prompting her to ask, “How did you know that information about my kids?”
- Apple launched Core AI, a framework designed for on-device generative AI optimized for Apple Silicon.
- Siri AI provided suggestions for Stern’s day, showcasing its ability to assist with personalized recommendations.
- Siri accurately provided context and information about local attractions, enhancing the user experience.
- Core AI ensures user data privacy and operates without server dependencies, making it a significant advancement for Apple's AI capabilities.
- Key capabilities of Core AI include unified hardware access and a memory-safe Swift API, enhancing performance across devices.
- Siri AI is described as the next-generation voice assistant that Apple has long promised, with a focus on hyper-personalization.
Apple's Siri AI has undergone a significant transformation with the introduction of the Core AI framework, enabling on-device generative AI capabilities for Apple Silicon. This new architecture allows Siri to deliver highly personalized responses by utilizing data from users' devices, enhancing both functionality and privacy.125678910111314
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During testing, Joanna Stern noted that Siri's responses were not only accurate but also contextually aware, stating, “Siri that’s pretty dead-on. How did you know that information about my kids?” This hyper-personalization is made possible by Siri's ability to access information from apps like Messages and Photos, ensuring that interactions feel more relevant and tailored to individual users.
The Core AI framework supports a range of machine learning models and is designed to run entirely on-device, which means it does not rely on cloud processing. This approach not only enhances user privacy but also eliminates server dependencies and associated costs. Apple emphasizes that “AI is only as good as the data it has,” and with its vast user data, Siri is positioned to provide increasingly sophisticated interactions.

Siri AI is set to be integrated across various Apple devices, including iPhones, iPads, MacBooks, and the Vision Pro, marking a pivotal moment in the evolution of Apple's voice assistant technology. As Apple continues to prioritize user privacy, the new Siri represents a significant leap forward in the realm of AI-driven personal assistants.
“Joanna Stern's week-long test of Siri AI reveals its impressive capabilities and hyper-personalization features. Apple also launched Core AI, enhancing on-device generative AI for its devices.”
