With macOS27 Golden Gate, Apple has quietly redesigned the core speech-to-text architecture to support their updated Apple Intelligence infrastructure. The native dictation and Apple SpeechAnalyzer components run locally on Apple Silicon (M3 or newer Macs with at least 12GB of memory), handling real-time automatic capitalization, punctuation, and formatting directly on the Neural Engine. Your M5 Pro MBP hardware supports that local model.
With the local models, Apple has removed the manual "Auto-Punctuation" toggle from the Dictation settings in certain regions and for newer hardware. The new "Advanced Dictation" model uses conversational AI context to determine sentence structure, treating any brief pause as a hard stop (a period/full stop) with no built-in way to turn it off.
Here are some possible workarounds:
Keep Talking
The new model dynamically evaluates text in real-time. If you pause briefly and it inserts a period, continuing your sentence without manually deleting the period will sometimes cause the AI to realize the sentence is ongoing, forcing it to automatically erase the period and change it back to a space. It is jarring to watch, but fighting it by stopping to manually backspace often interrupts this predictive correction.
Check the Text Input Settings
While it isn't a direct dictation toggle, some users have found that the OS treats dictation pauses as double-space triggers. Ensure this secondary shortcut isn't compounding the issue:
- Open System Settings > Keyboard
- Next to Input Sources, click Edit
- Turn off "Add period with a double space"

Consider a 3rd Party Alternative
If native dictation continues to waste your time there are 3rd party tools (e.g., MacWhisper) that may serve your needs better.
Either way, you should let Apple know about this problem. “We” are users like you and have no power to implement any suggestions. Apple employees are generally precluded from even reading these forums, with the exception of moderators who only monitor for compliance with the T&C.
To have Apple consider your feedback, submit it here:
Feedback - macOS - Apple