The Small Tics That Make Prose Read Like a Machine Wrote It
Readers rarely catch AI writing because of one big flaw — they catch it because of small, repeatable habits. Here are the ones that show up most often, with real before/after fixes for each.
It's never one giant red flag
Nobody reads a paragraph and thinks "that word choice proves it." They read it and feel a low hum of sameness — sentences that all move the same way, transitions that click into place a little too neatly, claims that sound confident but don't point at anything specific. Stack four or five of those habits in a row and the paragraph starts to feel manufactured, even if every sentence is grammatically fine.
The good news is that these tics are specific and fixable. Below are the ones editors flag most, with an example of the pattern in the wild and a rewrite that removes it without stripping the meaning.
Four patterns readers catch fast
| The tell | How it shows up | A fix that keeps the point |
|---|---|---|
| Connector stacking | "Furthermore, the software cuts onboarding time. Additionally, it reduces support tickets. Moreover, it improves retention." | "The software cuts onboarding time, which means fewer support tickets and, eventually, fewer people canceling." |
| The symmetrical setup | "It isn't just about saving money — it's about saving time. The rollout touched hiring, training, and reporting." | "Saving money was the pitch. What actually happened is hiring slowed down and training got skipped, so reporting fell apart." |
| Confident claims with nothing under them | "This method significantly improves results across teams of every size." | "Four of the six teams we tracked shipped faster; the two that didn't were already understaffed." |
| Metronome sentences | Every sentence lands within a word or two of the same length, one after another, like a drumbeat. | One short sentence. Then a longer one that carries a second idea and lets it breathe before the next point lands. |
If you stumble over a sentence when reading it out loud, or you can predict the next three words before you say them, that's usually one of these patterns. Human speech doesn't stack connectors or land on the same rhythm every time — writing shouldn't either.
Two quieter tells worth checking too
- Hedge-then-assert phrasing — "It is worth noting that this can, in some cases, lead to improvements" says almost nothing. Cut the hedge and just say what happened, or say you're not sure.
- The summary sentence that restates the paragraph above it word for word instead of adding anything new — if a sentence could be deleted without losing information, delete it.
A five-minute pass before you publish
- 1Search for the connector words
Furthermore, additionally, moreover, in addition — find every one and see if the sentence still makes sense with it removed. It usually does.
- 2Circle every claim
Anything that says "improves," "boosts," or "significantly" needs a number, a name, or an example next to it. If it doesn't have one, either add it or cut the claim.
- 3Count words per sentence
If five sentences in a row land within two or three words of each other, break the pattern. Combine two, or cut one down to four words.
- 4Read the paragraph out loud
Anywhere you'd naturally pause, add a period. Anywhere you'd naturally speed up, tighten the wording.
- 5Run it past a second set of eyes, human or tool
A quick pass through the free Paraphraser at AI Humanizer Lab will often flag the exact sentences carrying these patterns and suggest a more natural phrasing to swap in.
an editor describing a first draftThe paragraph didn't have a single wrong word in it. That was the problem — nothing in it sounded like it had been decided by a person.
None of this requires a personality transplant
You don't need a distinctive voice to fix these tells — you need to notice them. Uneven sentence length, claims backed by something specific, transitions that aren't stacked three deep: none of that changes what you're arguing, it just changes how mechanical the argument sounds while you're making it.
If you'd rather not hunt through a draft line by line, the Paraphraser on AI Humanizer Lab is built to spot exactly these patterns and offer alternative phrasing that reads more like a person wrote it in one sitting, not a template filling in blanks.
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