Apple Dictation converts your speech to text on your Mac. Charm corrects text in real-time as you type it. These are different tools for different inputs - one handles voice, one handles keystrokes. Using both together gives you faster text input via dictation with a one-keystroke fix (Option-Command-V) for transcription errors, proper noun mistakes, and grammar issues that Dictation introduces.
What does Apple Dictation do - and what doesn't it do?
Apple Dictation is built into macOS and is free to use. You activate it by pressing the Fn key twice (or the microphone key on newer keyboards), speak your text, and Dictation places the transcribed result in whatever text field is currently active.
Standard Dictation mode sends audio to Apple's servers for transcription. Enhanced Dictation (available on some configurations) processes audio on-device, but with reduced accuracy compared to the server-based mode. For most users, standard server-based Dictation provides the best accuracy.
Apple Dictation achieves approximately 95% accuracy for clear speech in quiet environments. That sounds high - but consider the math. At 200 words per minute of dictation, a 5% error rate produces roughly 10 errors per minute. An average 3-minute email dictation introduces around 30 errors that need manual correction. For occasional short phrases, Dictation is fine. For longer composition, the error accumulation becomes significant.
Dictation does not apply a correction pass to its output. What you hear transcribed is what lands in the text field. macOS autocorrect is active in the background for native AppKit text fields, and it may catch some clear spelling errors - but standard autocorrect does not handle homophone substitutions ("their" vs "they're") or grammar errors from misheard words.
Where Charm fills the gap Apple Dictation leaves
Charm's position in a dictation workflow is the clean-up step between Dictation's raw output and the message or document you send.
Charm corrects as you type, which means it acts on keystrokes. Text that Dictation places into a field arrives without keystrokes, so Charm does not correct it automatically. To clean it up, select it (or select nothing, to fix the whole field) and press Option-Command-V. Spells fixes misspelled and misheard words, and Polish fixes grammar such as wrong verb forms, articles and subject-verb mismatches. Anything you type afterwards is corrected as you type.
The types of Dictation errors Charm fixes well when you press Option-Command-V include: basic homophone substitutions caught through grammar context, agreement errors where Dictation mishears verb endings, punctuation errors from dictated run-on sentences, and word boundary errors where Dictation runs two words together or splits one word incorrectly.
Charm works across your Mac - including web apps like Slack, Notion, and Obsidian. Apple Dictation works in most Mac apps too, but macOS's built-in spell checker does not reach many web-based apps. Fix Selection works in the same places Charm does, which matters for Slack-heavy workflows where Dictation is often most useful.
How to combine Apple Dictation and Charm on Mac
No special configuration is needed. Both tools run simultaneously without conflict.
The workflow: install Charm, grant accessibility permissions in System Settings, and enable the Spells and Polish features. Apple Dictation is built-in and already available. From that point, Charm corrects what you type. After you dictate, select it (or select nothing, to fix the whole field) and press Option-Command-V to fix the transcription.
The one difference between dictating and typing is that last keystroke. Typed text is corrected as you go; dictated text, from Apple Dictation or another voice tool like Wispr Flow, is fixed when you press Option-Command-V. The same correction engine handles both.
The combined experience: speak naturally with Dictation, then press one shortcut to have Charm fix the output. For most dictation use cases - composing Slack messages, drafting emails, taking quick notes - this eliminates the manual editing pass that makes Dictation frustrating to use alone.
Does Apple Dictation autocorrect its own transcription errors?
No - not in a meaningful way. Apple Dictation relies on macOS autocorrect to catch errors in its output within supported native apps. But standard macOS autocorrect is a rule-based spell checker that only catches words that do not exist in its dictionary. It does not understand context well enough to catch a correct-but-wrong-meaning word substitution.
When Dictation transcribes "their going to the meeting" because it misheard "they're", macOS autocorrect sees "their" - a correctly spelled, real word - and makes no correction. The error passes through undetected.
Charm's Polish feature catches grammar errors like this because it evaluates grammatical structure, not just spelling. "Their going" is grammatically incorrect (the possessive "their" before a participle), and Polish detects and corrects this class of error that standard autocorrect misses entirely.
Frequently asked questions
Does Apple Dictation have autocorrect?
No - not in a meaningful way. Apple Dictation transcribes speech to text and relies on macOS's basic spell checking in native apps, which catches misspelled words only. Homophone substitutions, grammar errors, and wrong-word transcriptions are not corrected. Charm fixes these when you select the dictated text, or nothing, and press Option-Command-V.
Is Apple Dictation accurate enough for professional use?
Apple Dictation is accurate for clear speech in quiet environments, but at speaking speed even a small error rate adds up to several mistakes a minute. One Option-Command-V pass with Charm fixes most of them, which makes the combined workflow reliable enough for professional communication.
Can Charm correct Apple Dictation mistakes?
Yes, with one shortcut. Charm corrects typed text as you type, but dictated text arrives without keystrokes, so it is not fixed automatically. After dictating, select it (or select nothing, to fix the whole field) and press Option-Command-V, and Charm fixes the spelling and grammar in it.
Do Apple Dictation and Charm work at the same time?
Yes. Apple Dictation and Charm run simultaneously without conflict. Dictation converts speech to text and places it in the active field. Charm corrects what you type, and fixes the transcribed text when you press Option-Command-V. The combination gives you fast voice input with a one-keystroke clean-up.
What is the difference between Dictation and autocorrect?
Dictation converts speech into text - it is an input method. Autocorrect fixes errors in text that already exists in a field - it is a correction mechanism. They operate on different things: Dictation produces text from audio, autocorrect fixes errors in text. They are complementary, not overlapping.