Writing Tools Compose ChatGPT Mac: when it asks ChatGPT and when it is not available

Compose in Writing Tools sends your prompt to ChatGPT, so it works only after you set up the ChatGPT extension and only where Apple offers ChatGPT on your Mac. If your Mac, language, or region falls outside Apple Intelligence, or the extension is off, Compose is not there to use.

What Compose does in Writing Tools

Writing Tools is the set of text helpers built into macOS. Compose is the part that writes new text from a description. You type what you want, and it drafts the words for you.

The word to watch is ChatGPT. Apple's steps say you describe what you want ChatGPT to write. That tells you where your prompt goes before you press anything.

Compose gives you a draft, not a finished piece. Read every line before you use it. A draft can sound sure of itself and still get a date, a name, or a figure wrong.

The steps Apple gives for Compose on macOS 27

Apple's Writing Tools help page covers macOS 27. The flow is short. Here it is in order:

1. Select the text in an app that supports Writing Tools.
2. Control-click the selected text, then choose Show Writing Tools.
3. Click Compose.
4. Describe what you want ChatGPT to write.
5. Choose Include All Text or Selected Text.
6. Press Return.

Written as a menu path, the middle of that flow is Control-click the text > Show Writing Tools > Compose. Then type your description, choose the scope, and press Return.

A worked example

Say you have a rough paragraph in Apple Notes about a late order. You want a calm update for the customer. Select the paragraph, Control-click it, and choose Show Writing Tools. Click Compose.

Type something like this: "A calm two-sentence update to a customer about a delay. Plain words. No apology in the first sentence." Choose Selected Text, so the rest of your note stays as it is. Press Return, read the draft, and copy only the lines you want.

Look at what that prompt does. It names the audience, the length, the tone, and one rule. A vague prompt like "make this better" gets a vague draft. Specific prompts give you something you can use with less editing.

When Compose asks ChatGPT

Every Compose request goes to ChatGPT. Your description travels with it, and so does the text you chose. The request leaves your Mac. Treat it like a message you typed into ChatGPT yourself.

Apple's ChatGPT guide lists a few limits you should know. Apple Intelligence is not available on every Mac model, in every language, or in every region. The guide says it is in beta on Mac models with M1 or later. It also sets an age rule. You must be at least 13 years old, or the minimum age in your country, to consent to ChatGPT use.

Apple's support page lists 16 supported languages, including English. It also lists macOS 27 Golden Gate as a requirement.

So Compose asks ChatGPT only when all of these are true at the same time:

• Your Mac supports Apple Intelligence and runs macOS 27 Golden Gate.
• Your language is on Apple's supported list, and your region is supported.
• The ChatGPT extension is set up and turned on.
• You meet the age rule for consent.

If any one of those is false, Compose is not there for you.

When Compose is not available, and what to check

The table below sorts the common blockers. Use it as a checklist, top to bottom.

The table covers the hard blockers. Soft blockers are harder to spot. Apple's pages say the feature is in beta on Mac models with M1 or later, so behavior can change between updates. If Compose works one week and not the next, read the release notes for your macOS version before you change settings.

How to check your Mac in a few minutes

Work through these checks in order. Each one rules out a common cause.

1. Open the Apple menu > About This Mac. Confirm the macOS version and the chip. If the version is older than macOS 27, stop here. Compose will not appear.
2. Open System Settings > General > Language & Region. Confirm your language is on Apple's supported list.
3. Open the Apple Intelligence settings in System Settings. Look for the ChatGPT option and follow Apple's setup steps there.
4. Open Apple Notes, type two sentences, select them, and Control-click. If Show Writing Tools appears and Compose is in the panel, your setup works.

Step 4 is the fastest way to avoid blaming the wrong thing. If Notes works and your usual app does not, the problem is that app. If Notes fails too, the problem is your Mac or your settings.

When Compose disappears after a macOS update

Apple changes Writing Tools with macOS updates. The feature is still labeled beta on Macs with M1 or later, so a setting that worked last month can move. Start with the release notes for your version. Then open System Settings again and look at the Apple Intelligence section.

Keep a short note of three things: your macOS build, your language, and the app where Compose last worked. When it breaks, you can compare the two states in a minute instead of guessing.

If you use a work Mac, your IT team may manage Apple Intelligence settings. A managed device can hide those options, and you will see no switch to flip. Ask IT before you spend an afternoon on reinstalls.

Include All Text or Selected Text: how to choose

This choice changes how much text leaves your Mac. Pick Selected Text when the job is one sentence or one paragraph, such as a subject line or a tighter opening. Pick Include All Text when the draft needs the whole document for context.

A follow-up email that must match the thread above it is a good case for Include All Text. A new headline for one paragraph is not. Selected Text sends less, and a narrow selection usually gives a tighter answer.

Edge cases that change the result

Short selections give thin drafts. One word leaves Compose guessing about the audience. Add a sentence of context to the prompt, such as who the reader is and why they care.

Mixed-language text is harder. If your selection switches between languages, pick one language for the prompt and say which language you want back. Check the result carefully, because the language may not match what you expected.

Long selections cost focus. When you pick Include All Text on a long document, the draft can drift away from the paragraph you cared about. Narrow the selection and run it again.

Formatted text is a gamble. Tables, code, and bulleted lists may come back flattened. Compare the draft with the original before you paste it back.

Read the final draft out loud once before you send it. Stiff sentences look fine on screen, and they stand out fast when you hear them. If a line makes you stumble, rewrite it by hand.

Prompts that get drafts you can use

Give Compose the basics every time: who reads it, how long it should be, the tone, and one hard rule. Here are three examples that follow that pattern.

• "Reply to a vendor who missed a date. Three sentences. Firm, not rude. Do not promise a new date."
• "Turn these notes into a short intro for a newsletter. Plain words. Keep it in the first person."
• "Rewrite this for a reader who does not know the product. No jargon. Keep the same order."

If the draft misses, change one thing in the prompt and run it again. If you change everything at once, you cannot tell what helped.

A three-pass check before you paste anything back

Compose drafts fast, so your check should be a routine, not a feeling. Run three passes on every draft.

First, check the facts. Find every name, date, number, and promise in the draft. Compare each one with the original text or your own notes. If a fact is not in your source, cut it or fill it in yourself.

Second, check the scope. Make sure the draft answers the request you made, and nothing more. Compose sometimes adds a closing line or a offer you did not ask for. Delete those lines.

Third, check the voice. Read the draft once out loud. Then decide whether you would say it that way to the person reading it.

Three passes take a few minutes on a short email. On a long document, run them on each section, not the whole thing at once.

Mistakes people make with Compose

• Expecting a usage count. Apple's pages do not publish numeric usage limits for Compose. Do not assume a daily cap, and do not assume there is none.
• Choosing Include All Text by reflex. A long document can bury a small request. Pick Selected Text for one paragraph.
• Pasting private material without a check. Client names, health details, and unpublished deal terms need a policy check before any outside prompt.
• Trusting the first draft. Compose writes plausible sentences. It does not confirm your facts.
• Blaming the wrong thing. A missing menu item usually means a setting, a language, or the app. Check those before you reinstall anything.
• Treating Compose as a chat. Compose drafts text inside Writing Tools. A long back and forth belongs in the ChatGPT app.

What Compose does not do for you

Compose writes text. It does not change your settings, move files, or work inside other apps on your behalf. It also cannot check a claim against your sources unless you paste those sources into the prompt.

That limit shapes how you use it. Let Compose handle the wording. Keep the decisions, the facts, and the final read for yourself.

A realistic day with Compose

In the morning, you answer three vendor emails in your mail app. For each one, you select the message text, Control-click, choose Show Writing Tools, and click Compose. You ask for a reply that says yes to one request and no to another. You read each draft twice before you send it.

In the afternoon, you work on a project brief. You select only the introduction, not the whole document, so the draft stays focused. You ask for a plainer opening that puts the deadline first. You keep one sentence from the result and rewrite the rest by hand.

The routine works because you use Compose for small jobs. It fails when you use it to replace the thinking. Compose handles the wording. You still own the decision.

Privacy: check before you paste

Compose sends content to ChatGPT. The question is not whether the draft is good. The question is whether the content is allowed to leave your Mac.

Check your employer's rules and any client agreement first. If you handle confidential client material, read client confidentiality concerns with AI tools on Mac before you paste anything.

Read the privacy terms for ChatGPT and the Apple pages linked above. They describe what gets stored and where. This article does not, and you should not rely on it for that.

Compose or the ChatGPT app: which one to open

Compose lives inside Writing Tools, so it fits text you already have open. A long chat, a file upload, or a research question belongs in the ChatGPT app. For the app route, see How to use the Option+Space shortcut in ChatGPT on Mac. For a side-by-side look at ChatGPT on Mac and Lazur, see ChatGPT on Mac vs Lazur.

Where Lazur fits

Lazur is a voice assistant for the Mac that lives in the notch. It does not replace Compose, and it is not a plugin or add-in for any app.

Hold ⌥ ⌘ to ask about anything on screen. Lazur answers out loud. Ask where something is, and it draws a circle and a label around it. Hold fn to dictate clean text at the cursor in any app.

Lazur does not click buttons or operate other apps for you. It guides you, and you do the clicks. If Compose is missing from your menu, you can ask Lazur to walk you through the menus, one click at a time, while you find the setting yourself. Lazur runs on macOS, on Apple silicon and Intel Macs. Windows is planned, not available. It listens and looks at the screen only while you hold the shortcut.

Download Lazur for Mac and try it on the Apple Notes test above.