What’s the correct way to build ai chat app with good streaming support utilizing iOS 26 frameworks and such
Asked on 06/11/2025
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To build an AI chat app with good streaming support utilizing iOS 26 frameworks, you can leverage several new features and frameworks introduced by Apple. Here's a step-by-step guide based on the content presented at WWDC:
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Foundation Models Framework: This framework provides programmatic access to Apple's highly optimized on-device language model, which is great for tasks like summarization, extraction, classification, and more. It allows you to create dialogue on the fly and is easy to integrate with just a few lines of code. The framework supports streaming responses, which is crucial for a chat app to provide real-time feedback to users. You can learn more about this in the session Meet the Foundation Models framework (07:45).
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Speech Analyzer API: If your chat app involves voice input, the new Speech Analyzer API in iOS 26 can be very useful. It supports advanced speech-to-text capabilities, allowing you to convert spoken audio into text efficiently. This API is designed to handle long-form and distant audio, making it suitable for conversations. For more details, check out the session Bring advanced speech-to-text to your app with SpeechAnalyzer (02:41).
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Swift Concurrency and Network Framework: To handle streaming and asynchronous operations efficiently, you can use Swift's robust support for asynchronous operations and structured concurrency. The Network Framework integrates tightly with Swift, allowing you to manage network connections smoothly, which is essential for a chat app that requires real-time data exchange.
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Design Considerations: When building your app, consider best practices for prompt design and AI safety. The session "Explore Prompt Design and Safety for On Device Foundation Models" provides insights into writing reflective prompts and understanding device-scale language models.
By combining these frameworks and APIs, you can build a robust AI chat app with excellent streaming support on iOS 26.
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