Speech to text in ChatGPT on Mac

Yes, you can talk to ChatGPT on a Mac, and the quickest way is a key you can hold from anywhere. Click into ChatGPT's message box, hold fn, say what you want, and let go: Sayburst drops a clean, punctuated prompt in the box, ready to send.

ChatGPT has its own microphone too. The difference shows up when ChatGPT is one of ten apps you write in every day and you want one shortcut, one set of vocabulary and one level of polish across all of them.

#What ChatGPT has built in

OpenAI's ChatGPT Voice help article separates two features:

• Dictation records your prompt, shows the transcript so you can fix it, and sends it as text.
• Voice is a live spoken conversation, with ChatGPT answering out loud. OpenAI notes that Voice transcripts aren't verbatim.

According to OpenAI's release notes, a new speech-to-text model for Dictation rolled out to all ChatGPT plans on June 26, 2026. Both features live inside ChatGPT, so they don't help when the thing you're writing is a reply in Mail or a comment in Linear. (Checked at the end of October 2026.)

#How to set it up

1. Install Sayburst and grant Microphone and Accessibility. Sayburst downloads its speech model once; after that, recognition happens on your Mac.
2. Give ChatGPT a mode. Set the ChatGPT app, or your browser if you use chatgpt.com, to the Clean mode so prompts come out as plain paragraphs. Message mode works too if you like short, casual prompts without a forced final period. Then choose whether to turn on auto-send, which presses Return after inserting so the prompt goes straight to ChatGPT.
3. Click the message box, hold fn, talk, let go. Watch the overlay show your words as you speak. Release, and the prompt is in the box. For a longer brief, tap fn to go hands-free and tap again when you're done.

It works the same in the ChatGPT desktop app and in Safari, Chrome, Arc or any other browser, because Sayburst types into whatever field has your cursor.

#What it sounds like in ChatGPT

A trip request, with the kind of correction you make mid-thought:

"Plan a four day trip for two adults flying into Porto, sorry, Lisbon in March. Um, we don't care much for museums, we do like long lunches, and and we'd rather walk than take taxis."

What lands in the box, with Sayburst Writer on:

Plan a four-day trip for two adults flying into Lisbon in March. We don't care much for museums, we do like long lunches, and we'd rather walk than take taxis.

Porto is gone because you took it back, along with the "um" and the doubled "and".

Asking ChatGPT to help with something touchy, where you'd normally type, delete and retype:

"Help me reply to a client who wants to move the deadline for the, the third time. I want to say no to another change without, uh, without sounding annoyed."

Help me reply to a client who wants to move the deadline for the third time. I want to say no to another change without sounding annoyed.

Notice that Sayburst didn't write the reply. Sayburst Writer treats what you say as text to clean, never as instructions, so "help me reply" reaches ChatGPT word for word and ChatGPT does the writing. If you want to see why spoken prompts tend to work better, read talking to AI is faster than typing to it.

#ChatGPT Dictation vs Sayburst

If ChatGPT is the only place you talk to your Mac, its own Dictation is free and good. If you dictate everywhere, Sayburst gives you one habit for all of it.

#Where your words go

• Recognition happens on your Mac. Sayburst never uploads your audio.
• Cleanup, including the optional Sayburst Writer model, runs on your Mac with no account and no internet.
• An optional cloud writer. You can plug in your own OpenAI API key, or another provider, for the cleanup step. Then only the transcribed text goes to that provider, never audio, and Sayburst shows you exactly what will be sent before you enable it.
• ChatGPT receives the prompt when you send it and stores the conversation under your OpenAI account's settings, the same as a typed message.

For a longer look at what stays local and what doesn't, see local vs cloud dictation.

#Tips for ChatGPT

• Talk in full context. Spoken prompts tend to include the who, the why and the constraints. Let them run long; Sayburst cleans them up, ChatGPT benefits from the detail.
• Ask without opening a chat. For a quick question, hold Sayburst's ask shortcut and say it. The answer appears in a small panel with Copy and Insert, and you never leave the app you're in.
• Fix the prompt before it goes. Select your dictated text in the box, hold the rewrite shortcut, and say "make this more specific" or "turn this into a numbered list of requirements".
• Use the same key in the browser. ChatGPT in a Chrome tab on your Mac works exactly like the desktop app.
• Save names once. Add your product, your colleagues and your clients to Sayburst's vocabulary so ChatGPT doesn't have to guess what you meant.

#Limits worth knowing

Sayburst inserts the prompt when you finish talking rather than streaming it into the box, though the overlay shows each word as you speak. It doesn't speak ChatGPT's answers aloud; that's what ChatGPT's Voice is for. It's a Mac app for Apple silicon on macOS 14 or later, with no official ChatGPT integration: it types into ChatGPT the same way your keyboard does. On iPhone, Android or Windows, use ChatGPT's own microphone. New to dictation on a Mac? Start with how to dictate into any app.

Questions people ask

Does ChatGPT have speech to text?

Yes. ChatGPT has its own Dictation, the microphone in the message box, which turns a recording into text you can edit before sending. It also has Voice for spoken back-and-forth conversations.

What's the difference between ChatGPT Dictation and Voice?

OpenAI's help describes Dictation as recording a prompt, reviewing the transcript and sending it as text. Voice is a live conversation where ChatGPT answers out loud.

Why use Sayburst if ChatGPT already has dictation?

Sayburst works on a key you hold from any app, not only inside ChatGPT, transcribes on your Mac, removes fillers and false starts, and learns the names you use. The same shortcut then works in your email, docs and chat apps.

Can Sayburst send the message to ChatGPT for me?

Yes. Turn on auto-send for the ChatGPT app or your browser and Sayburst presses Return after inserting the text, so the prompt sends itself. Leave it off if you want to read it first.