1Why dictation cuts out in the first place
The cutoff comes from server-based dictation: the mode Apple uses before you've downloaded an on-device language, and the only mode available on Intel Macs. Server-based dictation sends your audio to Apple's servers to be transcribed, needs an internet connection, and has historically ended sessions short, roughly 30 to 40 seconds, or as soon as you pause.
Apple's own current documentation is explicit that this isn't how dictation is meant to work: “You can dictate text of any length without a timeout,” and on a Mac with Apple silicon, “there's no need to stop dictation.” The length cap is a symptom of the older, server-based mode, not a fixed rule.
2The free fix: download the on-device language
On an Apple Silicon Mac, downloading a dictation language switches you to on-device processing and removes the length cap.
- Open System Settings › Keyboard › Dictation.
- Click Edit next to Languages, and add the language and region you dictate in.
- Stay on Wi-Fi while it downloads. The model is roughly 1 to 2 GB, and size varies by language, so it can take a few minutes.
- Once it's installed, dictation runs on-device: no more internet round trip, and no more short-session cutoff.
3If you're on an Intel Mac
Intel Macs running current macOS don't have an on-device dictation option, so the server-based mode, and its shorter sessions, is the only one available. Restarting the dictation session as it ends works around it for short bursts, but there isn't a setting that removes the limit on Intel hardware.
4It also stops if you go quiet, and that part is intentional
Separately from the length limit, Apple's dictation stops automatically when it doesn't detect speech for about 30 seconds. That's expected behavior on any Mac, on-device or not, and it's different from a session getting cut off mid-sentence.
5Two more things worth checking
- Make sure you're online while a language is still downloading, or if you're relying on server-based dictation: no connection means dictation stops or never starts.
- If dictation is cutting out on words rather than time, that's usually a microphone or input-level issue instead: see our guide to dictation accuracy and mic choice.
6Still stuck?
For every fix in one place, see the complete guide to fixing Mac dictation.
No session limit, and it cleans up as you go
On a Mac that can't run on-device dictation, or if you want long-form dictation that also cleans up the transcript, Whisperly doesn't stop after a short session and removes filler and fixes grammar while you talk. It's cloud-based and needs an internet connection: it isn't an offline replacement for on-device Dictation.
Download Whisperly free for Mac