Fact · Dictation on Mac
Apple says its older SFSpeechRecognizer class worked well for short dictation and could use Apple's servers on devices with limited resources.
Checked against its source on October 16, 2026
In the source's own words
“It worked well for short-form dictation and it could use Apple servers on resource-constrained devices”
Bring advanced speech-to-text to your app with SpeechAnalyzer, Apple, Apple Developer, WWDC25 session 277, 2025, Transcript, introduction to the speech API history.
Open the original- What it measures
- Apple's session explains the history of its speech-to-text API, starting with SFSpeechRecognizer in iOS 10, before introducing SpeechAnalyzer.
- What it does not show
- Apple describes the older class in its own developer API. The session does not say which of these routes the Dictation key on a Mac uses for a given language.