Apple Intelligence uses custom Gemini models for Siri

Siri AI uses Google's Gemini models but is not the Gemini Assistant, meaning Apple customizes these models for its own features. Apple's "Apple Intelligence" integrates four custom Gemini versions on Apple Silicon and one sophisticated Google model on Google servers, all trained with Apple's data. This setup aims to ensure user privacy, with some models running on-device and others utilizing Apple's secure Private Cloud Compute architecture.