Speech-to-Text with SpeechAnalyzer

Overview

SpeechAnalyzer is Apple's new speech-to-text API introduced in iOS 26. It powers Notes, Voice Memos, Journal, and Call Summarization. The on-device model is faster, more accurate, and better for long-form/distant audio than SFSpeechRecognizer.

Key principle: SpeechAnalyzer is modular—add transcription modules to an analysis session. Results stream asynchronously using Swift's AsyncSequence.

Decision Tree - SpeechAnalyzer vs SFSpeechRecognizer