You can spot AI marketing copy from across the room. “Unlock the power of.” “In today’s fast-paced world.” “Elevate your journey.” It’s grammatically perfect and completely dead. The problem isn’t that you used AI — it’s how. Used well, AI is a fast, tireless drafting partner. Used lazily, it produces the beige slop everyone’s learned to scroll past. Here’s a method that keeps the speed and keeps you sounding human.
Why AI copy sounds like a robot
Two reasons. First, with no direction, AI writes toward the safe average of everything it’s seen — which is exactly why it reads generic. Second, it doesn’t know your voice, your customer, or the real thing you’re selling, so it fills the gap with filler. Fix both and the robot tone mostly disappears. The fix is a voice brief plus an editing method, not a better one-shot prompt.
Write a voice brief once, reuse it forever
Before you ask for a single line, give AI a short description of how you sound. Spend ten minutes on this, then save it where your AI tool reuses it — custom instructions or a project’s instructions — or paste it into each session (here’s how to set that up in ChatGPT and Claude):
- Three words for your tone. “Plain, warm, a little dry” produces very different copy than “bold, punchy, hype.”
- Words you never use. Ban your personal ick-list — “unlock,” “seamless,” “game-changer,” “elevate.” This one line alone kills half the robot smell.
- A real sample. Paste two paragraphs you actually wrote and say “match this rhythm.” Nothing teaches your voice faster than an example.
- Who you’re talking to. One real customer, in plain terms, not “our valued audience.”
The editing method that matters more than the prompt
Never ship the first draft — that’s the whole game. Treat AI’s output as raw clay:
- Cut the throat-clearing. Delete the first sentence. It’s almost always warmup (“In today’s world…”).
- Replace one abstract claim with one concrete detail. “Saves you time” becomes “gets your Monday invoicing done before coffee.” Specificity is what reads as human.
- Read it out loud. If you’d never say it to a customer’s face, rewrite it. Your ear catches robot tone your eye misses.
- Add one thing only you know. A real objection, a specific number, an honest caveat. AI can’t invent your truth — that’s your value.
A quick before/after
Before (raw AI): “Unlock the power of effortless productivity and elevate your workflow to new heights.” After (edited): “Do your admin in one sitting on Monday, so the rest of the week is actually yours.” Same idea, half the words, zero hype, and it sounds like a person who’s felt the problem.
Where AI genuinely can’t help
It can’t supply the specifics that make copy land — the real result your product delivers, the exact objection your customer raises, the number that proves your claim. ChatGPT, Claude and Notion AI can now remember your preferences, keep project files and pull from connected apps, but what you pasted or they fetched is a snapshot that goes stale, and they can’t know the objection a customer raised yesterday unless you tell them — so left alone they default to plausible-sounding filler. The more real context you bring — who buys, what they actually say, what your product genuinely does — the less generic the draft. That’s true whether you’re editing by hand or working where an assistant can already see your real business context instead of a screenshot, which is a good chunk of what a workspace built around an AI that reads your actual data is for. But even the best setup only drafts — the human detail is yours to add. That’s not a limitation to fix; it’s the part that keeps your copy sounding like you.
Frequently asked questions
How do I use AI to write marketing copy without it sounding fake?
Give it a voice brief first — three tone words, a banned-words list, a real writing sample, and who you’re talking to — then edit hard: cut the opening line, swap abstract claims for concrete details, read it aloud, and add one thing only you know. The brief and the edit matter more than the prompt.
Why does AI-generated copy sound so generic?
With no direction it writes toward the safe average of everything it’s read, and it doesn’t know your voice, customer, or product, so it fills gaps with filler like “unlock” and “seamless.” Feed it your voice and real specifics and the generic tone mostly disappears.
Should I ever publish AI copy without editing it?
No. Treat the first draft as raw clay, not a finished piece. The edit — cutting warmup, adding concrete detail, and inserting the one thing only you know — is what turns a plausible template into copy that sounds like a real person who understands the problem.
Vexlynk
Vexlynk Team