Dictation turns your speech into typed text wherever the cursor is, and that is all it does. Siri is an assistant: you ask it to do something, such as send a message, set a reminder or answer a question, and it acts on the request. If you searched for "Siri dictation" because you want to type by voice, you want Dictation, which is turned on in System Settings → Keyboard → Dictation. Siri is turned on separately in System Settings → Siri. The two share a key: on Apple keyboards with a Microphone key, a quick press starts Dictation and a press and hold starts Siri.
The steps below follow Apple's Mac User Guide for macOS 27. On macOS 15, Siri lives under Apple Intelligence & Siri (or Siri) in the System Settings sidebar. On macOS 12 and earlier, both settings are in System Preferences. Searching System Settings for "Siri" or "Dictation" finds them on any version.
What does each one do?
| Dictation | Siri | |
|---|---|---|
| What it is for | Entering text by voice | Getting things done and getting answers |
| What you get | Your words, typed at the insertion point | An action or a reply |
| Where it works | "Anywhere you can type," per Apple | Through requests, such as "Create a note" or "Set up a meeting at 9" |
| Turn it on | System Settings → Keyboard → Dictation | System Settings → Siri → Turn on Siri |
| Start it | Press and release the Microphone key, the Dictation shortcut (Fn-D in Apple's shortcut list), or Edit → Start Dictation | Press and hold the Microphone key, the Siri keyboard shortcut, the Siri icon in the menu bar, or "Siri"/"Hey Siri" |
| Internet | The text below the Dictation switch says whether general text dictation is processed on your Mac | Apple: "You must be connected to the internet to use Siri." |
| Sources: Apple's Dictation guide, Turn on and activate Siri on Mac, and Mac keyboard shortcuts, all opened on 1 October 2026. |
A simple test: if you want the exact words you said to appear in a document, use Dictation. If you want the Mac to do something for you, use Siri.
How do you turn on Dictation?
- Choose Apple menu → System Settings.
- Click Keyboard in the sidebar. You may need to scroll down.
- Go to Dictation, turn it on, and click Enable.
- If asked whether to improve Siri and Dictation, choose Share Audio Recordings or Not Now.
Then click in any text field and press the Microphone key or your Dictation shortcut. The full setup guide covers languages, the microphone and punctuation.
How do you turn on Siri?
Apple's macOS 27 steps:
- Open System Settings.
- Click Siri in the sidebar. You may need to scroll down.
- Click Turn on Siri and follow the onscreen instructions.
On a Mac that supports Apple Intelligence, Apple's page also offers Try Siri AI (Beta), the new version of Siri in macOS 27. If you prefer the previous version, Apple says to turn Siri off, click Turn On Siri, then select Use Siri Classic.
On macOS 15, Apple's guide says to click Apple Intelligence & Siri (or Siri) in the sidebar, turn on Siri, then click Enable.
What are the Siri and Dictation shortcuts on a Mac?
| Feature | Shortcut, per Apple |
|---|---|
| Dictation | Press and release the Microphone key; Fn-D; or the choice in Keyboard → Dictation → Shortcut |
| Siri | Press and hold the Microphone key; or "the keyboard shortcut specified in Siri settings" |
| Siri AI only | Command-Space bar to ask Siri in Spotlight; Command-Shift-Space bar to select a window; Command-Shift-6 to select part of the screen |
| Type to Siri (Siri Classic) | Press Command twice |
The Microphone key line comes from Apple's Dictation guide: "Press and release the Microphone key to start Dictation; press and hold the key to activate Siri (Siri must be enabled)." If Siri opens when you wanted Dictation, you are holding the key too long.
On macOS 15, Apple's Siri settings page says you can choose a Siri keyboard shortcut or choose Customize to create your own. To change the Dictation shortcut, see the Mac dictation shortcut guide.
Can Siri write a message or email for me?
Yes, in two different ways, and neither is the same as Dictation.
- Siri sends things for you. Apple's macOS 15 guide gives requests such as "Send a message to Ashley Rico saying love you heart emoji." Siri composes and sends the message as a task.
- Siri AI writes for you. In macOS 27, Apple's Write with Siri page says Siri AI can "compose, rewrite, proofread, and get feedback on what you've written." Apple's examples include "Proofread this." That means Siri is generating or changing text, not transcribing your words. Apple says Siri AI is in beta, in English to start, and usage limits may apply.
If you need your own words, in your own order, use Dictation and edit afterwards.
Do Siri and Dictation share settings or data?
Some things are shared:
- Improve Siri & Dictation is one switch for both, under Privacy & Security → Analytics & Improvements.
- Apple's Siri, Dictation & Privacy notice covers both. It says that if you turn off both Siri and Dictation, the transcripts stored on your device "will be deleted."
- On macOS 15, Siri settings included a Siri history option to "Delete Siri and Dictation interactions you've performed on this Mac from Siri servers."
They are otherwise separate. You can use Dictation with Siri turned off, and Siri with Dictation turned off. Is Mac Dictation private? covers what Apple says it processes for Dictation.
Which should you use for writing?
For text you will keep, such as emails, notes, documents and chat messages, Dictation, because it types exactly what you say where the cursor is. Use Siri for quick tasks and questions. Use Siri AI if you want help drafting or proofreading, and check its output before you send it.
If you want hands-free control of the whole Mac, neither is the right tool. That is Voice Control; see Mac Voice Control vs Dictation.
Where does a third-party dictation app fit?
On the Dictation side only. SuprFlow, which publishes this guide, is a dictation app: hold Fn, speak, release, and the text is pasted at the cursor, with speech recognised on the Mac. It is not an assistant and does not answer questions, run tasks or control the Mac by voice. It needs an Apple Silicon Mac with macOS 14 or later and costs $125 once, with no free tier. Apple's Dictation is free; try it first. SuprFlow vs Apple Dictation covers when a paid app is worth it.
Questions people ask
How do I enable Siri dictation on a Mac?
If you mean typing by voice, turn on Dictation in System Settings → Keyboard → Dictation. Siri itself is turned on in System Settings → Siri.
What is the Siri dictation shortcut on a Mac?
Dictation starts with a quick press of the Microphone key or Fn-D. Siri starts with a press and hold of the Microphone key, or the shortcut set in Siri settings.
Can I use Dictation without Siri?
Yes. They are turned on separately. Dictation does not need Siri to be on.
Why does Siri open when I try to dictate?
You are probably holding the Microphone key. Apple says press and release starts Dictation; press and hold activates Siri.
Related guides
- How to use voice to text on a Mac
- Mac dictation shortcut: default keys and how to change them
- How to turn off Dictation on a Mac
- Apple Intelligence Dictation on a Mac
- Mac Voice Control vs Dictation
- Is Mac Dictation private?
Sources
- Apple — Dictate messages and documents on Mac
- Apple — Turn on and activate Siri on Mac
- Apple — Use Siri on Mac, macOS 15 edition
- Apple — How to use Siri on your Mac, macOS 15 edition
- Apple — Siri settings on Mac, macOS 15 edition
- Apple — Siri AI: Write with Siri on Mac
- Apple — Mac keyboard shortcuts
- Apple — Siri, Dictation & Privacy