Your unread messages badge says 14, and answering all of them will eat your morning. Now ChatGPT on Mac can read your iMessage threads, draft the replies, and send them after you give each one a quick look. It’s like having a text-savvy assistant sitting in your menu bar.
The feature rolled out as a plugin for the ChatGPT desktop app, and it’s exactly what it sounds like. You ask, it reads the thread, you get a draft. Sounds great, right? Before you hand over your group chats, there are a few catches worth knowing.
What the plugin actually does
Once it’s set up, ChatGPT can search your message history and write replies inside threads. In the demo OpenAI shared, a user asked the bot to find conversations they’d missed the day before, then had it write and send the response. That’s the whole workflow: find, draft, approve, send.
A few things it will NOT do, and this matters:
- It doesn’t build an index of your texts. Nothing gets catalogued in the background.
- It won’t read a thread unless you explicitly ask it to in that conversation.
- It never sends anything on its own. Every message waits for you to approve the draft.
An OpenAI spokesperson put it plainly to Engadget: “We care deeply about user privacy, and the plugin is designed to be transparent and keep users in control of their Messages data.” So the design is consent-heavy by default, which is more than I expected.
Who can use it right now
Here’s the catch number one: this isn’t for everyone yet.
The plugin is only available to ChatGPT Work and Codex users on Mac. If you’re on the free tier or a regular Plus plan, you can’t install it today. That limits the audience quite a bit, though these things tend to spread to cheaper plans later.
You also need the desktop app, since this doesn’t work from the browser. If you live in chatgpt.com all day, the plugin isn’t in play.
There’s a device limit too, and it’s worth understanding before you hunt for a setting that doesn’t exist. The plugin lives in the Mac ChatGPT app, so there’s nothing to install on your iPhone or iPad. What it reads is your Mac’s Messages history, which means iMessages by default, plus any SMS that shows up there if you relay texts from your iPhone. Conversations that only exist on your phone won’t be visible until they sync to the Mac.
As for price, OpenAI hasn’t attached a separate cost to the plugin itself. It rides along with whatever ChatGPT Work or Codex plan you already have, so check OpenAI’s plans page for current pricing if you’re weighing a subscription purely for this feature.
How to set it up on your Mac
The setup takes a few minutes, and Apple’s permission gates make you work for it. That’s a good thing, because nobody should grant this access by accident. Here’s the sequence:
- Open the ChatGPT desktop app on your Mac and find the Apple Messages plugin.
- When the permissions screen appears, allow ChatGPT to access your on-device Messages history.
- Head to System Settings and give ChatGPT Full Disk Access. macOS won’t let the plugin read your messages database without it.
- Grant access to your contacts’ names so replies can address people properly.
- Allow the automation tools it asks for, or the send step won’t work.
- Test it: ask ChatGPT to find yesterday’s missed messages and draft a reply. Approve the draft and confirm it sends.
Notice how many gates there are. Four separate permissions, each one explicit. Bloomberg’s report on the launch flagged privacy concerns right away, but the flip side is that this is one of the hardest features to enable by mistake.
The privacy math nobody does
Let’s be honest about the trade. You’re giving an AI app full disk access on the device that holds your most personal conversations.
Full Disk Access is the scary one. That permission isn’t scoped to just iMessage, it’s macOS’s master key. ChatGPT the company says the plugin only uses it to read your Messages data when you ask. Technically, you’re trusting that promise plus whatever Apple’s sandboxing enforces.
There’s a wrinkle in the Apple-OpenAI relationship too. Apple sued OpenAI in July over trade secret theft, claiming OpenAI hired its employees specifically to grab confidential information. OpenAI says the lawsuit gets it wrong. Either way, these two aren’t exactly finishing each other’s sandwiches, and it’s unclear whether OpenAI worked with Apple on this plugin at all.
Apple has a history here. Remember Beeper Mini? In 2024, Apple kept killing its access to iMessage until Beeper gave up entirely. The company guards iMessage like a dragon guards gold. So how long this plugin lives, and whether it evolves, depends partly on Apple’s mood.
My take: if your messages contain nothing sensitive, the convenience is real and the design is careful. If you’re a lawyer, a doctor, or anyone whose texts could end up in a headline, maybe keep this one off the work machine.
Is it actually useful day to day?
For the right person, yes.
The sweet spot is triage. You come back from a meeting, eleven threads are waiting, and most of them need one-line answers. ChatGPT drafts those while you focus on the two that actually need your brain. That’s the same pitch as letting Claude handle your email inbox, and it works for the same reason: the boring 80% gets handled, you handle the important 20%.
Group chats are where it gets funny. AI drafts in a group thread read like AI. Your friends will notice. Keep the personal voice for people who know your voice.
And if you already use ChatGPT to run other parts of your setup, this fits right in. Between the speaker control on Sonos gear and memory features that carry context across chats, the desktop app is quietly becoming a control center. Messaging is just the newest layer.
What if you’re not on a Work or Codex plan?
You still have options while you wait for a wider rollout.
First, Shortcuts on macOS can already bridge some of this gap. A simple shortcut can pass selected text from Messages into ChatGPT and bring a reply back, with you still doing the actual sending. Clunkier, but free.
Second, the browser version of ChatGPT works fine for the paste-and-draft approach. Copy a thread, strip the personal bits, ask for a reply in your tone. It sounds manual because it is. Yet for the occasional awkward-message emergency, it does the job without any permissions.
Third, watch the ChatGPT release notes. OpenAI tends to expand Mac-only features to other plans within a few months. If the Apple Messages plugin follows the usual pattern, free and Plus users will get a version of it eventually, minus some advanced options.
The takeaway
If you pay for ChatGPT Work or Codex and live on a Mac, the iMessages plugin is worth ten minutes of setup: you triage faster, nothing sends without your approval, and you can revoke the access anytime in System Settings.
If you’re not on those plans, don’t rush to buy a subscription just for this. Wait until it lands on the tier you already have, because it probably will.
