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Marketing copy still needs a name on the page
AI can draft marketing copy in the time it takes to make tea. That speed is real. What is not real is the idea that a fluent headline is a finished claim. Brand voice is a set of words you will stand behind, a register your customers already know, and a line your counsel will not let you cross. ChatGPT will happily write a superlative, a saving, and a before-and-after story. It does not know whether the superlative is substantiated, whether the saving is still on the site, or whether the story belongs to a customer who never signed a release. The person who publishes the page is the author. The model is a clerk.
If you cannot name the claim, the proof, and the person who will publish, do not generate the copy yet. You are not ready to brief the model.
Four copy jobs ChatGPT can do, and one it cannot
It can shorten a rambling product paragraph you already wrote. It can retone a blunt feature list for a first-time buyer without adding a new promise. It can turn approved bullets into three subject lines. It can propose a hierarchy: headline, proof, and ask. It cannot know whether the discount is live, whether the testimonial is cleared, or whether a competitor name is allowed in the comparison. Give it the approved claims, the audience, and the one offer. Tell it what not to promise. Ask for two lengths. Pick one. Generated copy that tries to cover every benefit is how you bury the offer and invent a claim nobody can source from the file.
| Copy job | Let ChatGPT | You keep |
|---|---|---|
| Landing page | Structure and shorter variants | Claims, price, and proof |
| Paid ads | Headline options from approved lines | The offer that is actually live |
| Nurture email | Tone pass and a clear ask | The promise and the unsubscribe facts |
| Comparison chart | Layout from your bullets | Competitor facts you can date |
A brief that produces copy you can sign
Paste only the claims you are allowed to paste: the product sheet, the approved proof points, the banned phrases. State the channel and the reader. Name the one offer. Ban new facts, new savings, and unnamed awards. Ask for the ask in the first line of body copy. Then read the draft aloud. If you would not say it to a customer who has the contract in front of them, do not publish it. Keep a small set of saved briefs: landing page, nurture email, paid search variants. Edit those, not a blank chat, each time. Copy is high volume. A stable brief is how brand voice stays even when the deadline is ugly.
Role: You are drafting marketing copy I will publish under my name.
Task: Write the artefact I name using only the approved claims I paste.
Context: Channel, reader, and the one offer.
Constraints:
- Do not add savings, awards, testimonials, or superlatives I did not state.
- If a proof point is missing, write [missing] instead of guessing.
- Put the ask in the first two sentences of body copy.
Output: Two length options plus a list of claims a regulator could challenge.
Quality checks: Which lines sound generic, and which lines need a source I did not provide.If the critique list shows a saving or an award you did not intend, you have already been saved a bad publish. That list is the point of the prompt, not an extra flourish. Save the brief in a shared note so the next copywriter does not start from a blank chat. Keep the version that survived legal review, and retire the one that produced brochure English. Five briefs the team actually uses beat a private trick.
Invented proof, generic voice, and the letter you did not want
Generic voice is a trust leak. Customers notice when every brand sounds like the same helpful intern. Put back the product name, the constraint, the unglamorous detail that only you know. Invented proof is worse: a statistic, a ranking, a customer result that never sat in your file. If it is not in the paste and not on the live page, delete it. Watch implied claims. A model will write the fastest because superlatives sound like marketing. Your regulator, your competitor, and your counsel will read it as a claim. You still choose the sentence. ChatGPT does not sit in the complaint meeting that follows.
| Mistake | What it looks like | What to do instead |
|---|---|---|
| Write some ads | No offer, no proof, no ban | Channel, offer, approved lines, bans |
| Sound exciting | Superlatives with no file | Specific nouns and dated proof |
| Invented saving | Save 30 percent this week | Check the live price first |
| Skip legal | Publish the fluent draft | Named reviewer for the claim |
A headline that invents a result is not a good draft. It is a faster way to publish a claim you cannot defend. Check the live page first.
Related reading on StudyGrid
Read next: Writing Someone Will Sign How to Review AI Drafts How to Cite AI Sources. Those essays sit beside this one. Use them when you need the neighbouring skill, not as a substitute for the check you still have to make.
What to do this week
Take one live campaign this week. Brief ChatGPT from the approved sheet only. Generate two variants. Check every claim against the live page and the legal file. Keep the brief if counsel did not have to rebuild it, and share it with the next person who will write copy. Drop it if they still start from a blank chat. That is how AI for marketing copy becomes a method instead of a late-night gamble with the brand.