In the gold rush of Artificial Intelligence, developers often obsess over model parameters, token limits, and inference speeds. But in the Apple ecosystem, a groundbreaking AI model is only as good as the interface that houses it. If your app delivers world-changing insights but hides them behind a keyboard or makes them invisible to VoiceOver users, it isn't a "smart" app—it’s a broken one. Building for iOS, macOS, and visionOS requires a shift in mindset: the user interface is not just a display for model outputs; it is an integral part of the intelligence itself. This guide explores how to use Swift 6 and SwiftUI to master the three pillars of a premium AI experience: Keyboard Avoidance, Accessibility, and Polish. 1. Keyboard Avoidance: The Dynamic Interface Negotiation For AI applications, the keyboard is a constant companion. Whether a user is engineering a complex prompt or chatting with a bot, the keyboard frequently occupies nearly half the screen.…