Why AI text sounds like AI: the seven tells
You can usually feel when a piece of text was machine-written before you can say why. The "why" is surprisingly consistent. Here are the seven patterns that give AI prose away — and what a human editor does about each one.
1. The stock vocabulary
Every era of AI models has its favorite words. "Delve." "Landscape." "Tapestry." "Seamless." "Leverage." "Robust." None of these words is wrong — the tell is their frequency. AI models reach for them constantly because they're statistically safe choices, the vocabulary equivalent of a firm handshake. A human writer might use "delve" once a month. A model will use it three times a page.
The fix: swap for the plain word you'd say out loud. Explore. Scene. Mix. Smooth. Use. Strong. The NEO editor flags these terms automatically and suggests alternatives — but the principle works with any tool, including your own eyes.
2. Uniform sentence rhythm
Read AI text aloud and you'll notice the sentences are suspiciously similar in length — usually 18 to 25 words, clause after balanced clause. Human writing is bursty. We write a long winding thought when we're working something out. Then a short one. Sentence-length variance (statisticians call it standard deviation; writers call it rhythm) is one of the most measurable differences between human and machine prose.
The fix: split one long sentence in every paragraph, and let one short sentence stand alone. Don't do it mechanically — do it where the emphasis wants it.
3. The rule of three, everywhere
AI loves triads: "clear, honest, and grounded." "Faster, cheaper, and more reliable." One triad is rhetoric; five in a page is a pattern. Humans vary the shape — sometimes two items, sometimes an ungainly four, sometimes one thing said plainly.
4. "It's not X, it's Y"
The contrast construction — "This isn't just a tool, it's a philosophy" — appears in machine drafts at a rate no human matches. Once you see it, you can't unsee it. Keep one if you love it; cut the rest.
5. Hedged symmetry
AI drafts balance everything: every advantage gets a "however," every claim gets a qualifier, every paragraph lands neatly on both feet. Real writers commit. They have opinions that stick out at angles. If your draft agrees with everyone, it will sound like it was written by no one.
6. The formulaic close
"In conclusion, [topic] represents a fascinating intersection of..." Machine endings summarize; human endings land. End on the concrete image, the sharp claim, the thing you'd say last if you were saying it to a friend — not on a summary of what the reader just read.
7. Nothing only you could have written
The deepest tell isn't in the words at all. It's the absence of the specific: no detail from your Tuesday, no number from your own experience, no opinion that risks anything. A machine can imitate rhythm and vocabulary. It cannot know that your first customer paid you in cash held together with a rubber band. Put one thing in every piece that only you could know.
The honest takeaway
None of this is about fooling detectors — detector-chasing is a losing game, and it misses the point. It's about the reader. Readers trust writing that sounds like a person, and every fix above makes the writing better by any standard, machine-made or not.
The NEO editor automates the mechanical parts — flagging stock vocabulary, measuring your rhythm, comparing a draft against how you actually write — and leaves the human parts to you.