The Tells: How to Catch AI Copywriting Before It Kills Your Conversions (2026)

Your readers can tell. That is the part most marketers have not caught up to. In 2026, a huge share of the population has read enough AI-generated text to recognize it on sight, the same way a poker player reads a tell. And the moment a reader clocks that a machine wrote your landing page, something quiet and expensive happens: they trust it less, they read it less carefully, and they convert less often. The copy did not get factually worse. It got recognizably generic, and generic does not sell.

So before you ship another word, learn the tells. Here are the ones that give the game away, why they cost you money, and the editing pass that strips them out.

The AI copywriting tells, annotated

• The em dash, everywhere. The single most reliable fingerprint of machine writing is the em dash used three times a paragraph to bolt clauses together. Humans use them occasionally. Models use them constantly, because they are a frictionless way to extend a sentence without committing to a real structure. One of the sharpest operators I follow, George Hartley, hard-codes “no em dashes” into his AI writing prompts for exactly this reason. Notice that this entire article does not use one. That is a choice, and the reader’s subconscious registers it.
• “It’s not X. It’s Y.” The negation-reversal flourish. “This isn’t a tool. It’s a movement.” Models reach for it because it manufactures the feeling of insight without the substance of it. It was fresh the first thousand times. Now it reads as a tic, and Hartley bans this one too. When you catch yourself writing it, you have almost always written a sentence that says nothing.
• The fast-paced world opener. “In today’s fast-paced digital landscape.” Any sentence that begins by gesturing at the modern era is a sentence the model wrote to warm up its engine. Cut it. Your reader knows what year it is.
• The rule of three, mechanically. “Engaging, informative, and valuable.” “Streamline, optimize, and scale.” Three adjectives or verbs in a row, perfectly balanced, none of them earning their place. Real writers use the occasional triple for rhythm. Models use it as a default setting, which is why AI copy has a faint sing-song cadence once you hear it.
• The vocabulary tells. Delve. Elevate. Unlock. Seamless. Robust. Leverage. Game-changer. Tapestry. Each of these is a word that humans rarely choose in conversation and models choose constantly. A page that wants to “unlock seamless, robust solutions” is wearing a name tag that says “generated.”
• The wrap-up that adds nothing. “In conclusion, email marketing remains a powerful tool for businesses looking to grow.” The summary that restates what you just read in slightly flatter words. Humans end with a point. Models end with a recap, because recapping is safe and saying something is risky.
• The relentless hedging. “Can help.” “May contribute to.” “Is often considered.” Copy that never commits, because the model is trained to avoid being wrong. Marketing that never commits never persuades. Conviction is the whole job, and hedging is its opposite.

None of these are crimes on their own. The problem is the cluster. When a reader hits three or four in the same paragraph, the pattern resolves, and the page quietly loses its authority.

Why this costs you conversions

Persuasion runs on trust, and trust runs on the sense that a specific human is talking to you about something they actually know. Every tell chips at that. The em dashes and the rule-of-three signal automation. The hedging signals that nobody is willing to stand behind the claim. The generic vocabulary signals that this page could have been written about any product, which tells the reader, correctly, that no one thought hard about theirs.

There is also a saturation effect. Your prospect has read forty pages this week that open with the fast-paced world and close with “in conclusion.” Yours becomes the forty-first, indistinguishable, forgettable, easy to bounce from. Distinctive copy is not a nice-to-have anymore. It is the thing that earns a second sentence of attention, and the second sentence is where selling starts. The cheaper it becomes to generate words, which I wrote about in what is vibe marketing, the more valuable it becomes to write ones that sound like a person.

Write like a specific person who knows something, talking to a specific person who needs it.

The editing pass that fixes it

You do not have to write everything by hand to avoid the tells. You have to edit like a human with taste. Here is the pass I run on anything a model drafted.

• Read it out loud. This is the fastest tell-detector ever invented. Anything you would never say to a person’s face, the em dash pileups, the sing-song triples, the hedging, becomes audible the moment you voice it. Your ear catches what your eye skims.
• Delete the first paragraph. Roughly nine times in ten, the model spent its opening warming up, and the real beginning is paragraph two. Cut the warm-up and your page starts with the answer, which is also what AI search rewards, as I covered in the first 200 words rule.
• Replace every abstraction with a specific. “Powerful results” becomes “a 26 percent lift in open rates.” “Businesses of all sizes” becomes “a two-person agency or a Series B team.” Specifics are the texture of someone who actually knows the subject, and they are the one thing a model will not supply unless you force it.
• Vary your sentence length on purpose. Models default to a steady medium-length rhythm, and steadiness reads as machine. Put a four-word sentence next to a twenty-five word one. The variation is what a human voice sounds like on the page.
• Kill the summary. If your last paragraph restates the article, cut it and write a real ending instead: a point, a challenge, a line the reader carries out the door.

Before and after

Before: “In today’s competitive market, leveraging email marketing can help businesses of all sizes unlock powerful results. It’s not just about sending emails. It’s about building relationships. Engaging, nurturing, and converting your audience is key to driving growth.”

You can hear every tell in it.

After: “Email is the only channel you own outright. Instagram can change its algorithm overnight and cut your reach in half. Your list cannot be taken away. That is why a 1,000-person list you actually talk to is worth more than 50,000 followers you rent from a platform that does not work for you.”

The second version makes a claim, backs it with a specific contrast, and sounds like a person who has an opinion. It is also shorter on filler and longer on substance, which is the trade you are always trying to make.

The creed

Here is the standard, and it is short. Write like a specific person who knows something, talking to a specific person who needs it. Make claims. Use real numbers. Vary your rhythm. Cut the warm-up and cut the recap. And read every line out loud before it ships, because the ear does not lie.

The tools that draft your copy will keep getting better, and that is fine. Drafting was never the valuable part. The valuable part is the taste to know when a sentence is wearing a name tag that says “generated,” and the discipline to take it off. That judgment is yours, it is rare, and in a world drowning in competent sameness, it is the most billable skill you have.

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I am Seun Kayode, a marketing manager in Toronto. I take AI-drafted copy that reads like everyone else’s and rewrite it so it reads like you. If your pages are polished and somehow still flat, send them over.

AI copywriting, in one line

Good AI copywriting is invisible. The hedging, the symmetrical rhythm, the empty intensifiers are what give the robot away. Edit AI copywriting until it reads like a human wrote it, or your conversions pay the bill.