July 21, 2026 · 6 min read
Signs your AI writing is too polished and how to fix it
Perfect grammar sounds like good writing. But when AI produces it, readers notice something is off. Here are five dead giveaways of too-polished AI writing and how to fix each one manually.

AI writing has a tell. It's not bad grammar or factual errors. The opposite, actually. It's that the writing is too damn clean.
Every sentence lands with the same satisfying click. Every paragraph wraps up neatly. Every transition is exactly where you'd expect it. And that's why it feels wrong.
John Nosta, writing in Psychology Today, calls this the shift from purple prose to polished prose: 'AI prose is too perfect and that perfection has become a problem. Flawless writing just doesn't sound like you.' He's right. The friction that used to signal human effort is gone, replaced by a smoothness that feels uncanny.
The good news: you don't need to add fake typos or sound dumber to fix this. You need to understand what 'too polished' actually means and then undo it with intention. Here are the five dead giveaways and how to fix each one.
Your sentences all follow the same rhythm
Read a paragraph of typical AI output out loud. You'll hear it immediately: the sentences are all roughly the same length. They all start with a similar structure. Subject, verb, object. Subject, verb, object. Like a metronome.
Human writers don't do this. We vary our rhythm. We throw in a seven-word sentence. Then a thirty-word one with a clause that meanders a bit because we're working through an idea in real time. The variation is what makes reading feel like a conversation, not a conveyor belt.
How to fix it: Take any paragraph where three or more consecutive sentences have similar length. Break one into two short ones. Combine two others into a longer one with a semicolon or an and. The goal isn't chaos. It's variety that feels natural.
The tone stays flat from beginning to end
AI defaults to a pleasant, balanced tone. Every section gets the same level of enthusiasm. Every claim sounds equally important. There's no leaning in, no pulling back, no moment where the writer sounds genuinely surprised or annoyed or uncertain.
Real writing is uneven. Some sentences carry weight and the writer knows it. Others are filler between the good parts. The reader can feel the difference. When tone never shifts, the writing reads like a Wikipedia article where every section was written by the same committee. Accurate. Smooth. Dead.
How to fix it: Go through your draft and ask: which parts actually matter? The ones that do should sound like they matter. Shorten your sentences for impact. Use stronger verbs. Cut the hedging. For everything else, you can afford to be looser and faster. Let the reader feel the difference in energy.
Your transitions are a pattern, not a bridge
AI loves academic-sounding transition words. It uses them like bricks to stack ideas without actually connecting them. The result is writing that looks organized but reads like a checklist where every item got the same glue.
Human writers connect ideas through logic, not linking words. A transition should tell the reader why the next idea follows from the last one. If you can delete the transition word and the paragraph still makes sense, the word was doing nothing.
How to fix it: Delete every formulaic transition word in your draft. Read it through. If any two paragraphs feel disconnected, the problem isn't the missing word. It's that the ideas need a sentence that actually explains the connection. Write that sentence instead of putting the transition word back.
Your endings are too tidy
This is the polished reflective ending that the Bing query already noticed. AI wraps everything up with a neat bow. The ending sounds like a high school essay where the teacher deducted points for not restating the thesis. 'AI writing tools offer both opportunities and challenges,' it says, 'but ultimately the human element remains essential.' Nobody talks like that.
Human endings are messier. Sometimes they trail off mid-thought. Sometimes they end with a question. Sometimes they just stop because the writer ran out of things to say and adding more would be padding. That's the right move. Stop when you're done, not when the template says the conclusion paragraph goes here.
How to fix it: Cut the last paragraph of your draft entirely. Read it again. Did you lose anything important? Usually not. The real ending was one paragraph earlier. The AI just added a summary on reflex because summaries are what it does.
You never take a position
AI is designed to be helpful and harmless. It presents multiple perspectives. It says 'some argue X, while others maintain Y.' It hedges every strong claim with an 'it depends.' After ten paragraphs of this, the reader has no idea what the writer actually thinks.
Human writers aren't neutral. We have opinions. We pick sides. We say 'this tool is overrated' even when other people disagree. That's what makes writing worth reading. Not the information itself, but the person behind it.
How to fix it: Find three places where the draft says something any reasonable person would agree with. Replace each one with a statement only you'd make. 'AI output needs editing' becomes 'I think most AI editing advice overcomplicates things. You don't need a five-step process. You need to read your draft out loud and trust your ear.' That's a person talking. The first version was a FAQ page.
The manual fix: an un-editing checklist
You don't need another AI tool to fix AI writing. That's how you end up with two layers of polish instead of one. Here's the manual checklist I use on every draft:
First pass, sentence rhythm: Read the draft out loud. Highlight every sentence that sounds like the one before it. Vary the length and structure of at least half of them.
Second pass, tone: Find the most important paragraph in each section. Make it sound more important. Cut the words that soften it. For the rest, loosen up. Use contractions. Write shorter.
Third pass, transitions: Delete every formulaic transition word. If the logic breaks without them, write a real bridge sentence. If it doesn't break, the transition was filler.
Fourth pass, endings: Cut the final sentence of each section. Does it still make sense? Good. Cut the next one too. Keep going until you feel the loss. Then put back only the last thing you cut.
Fifth pass, opinion: Find three sentences a bot would write. Replace them with sentences only you'd write. This is the hardest pass and the one that matters most.
This isn't about making your writing worse. It's about putting back the texture that AI strips out. The result should read like a smart person thinking out loud, not like a language model asked to produce a blog post about topic X.
The difference between polished and professional writing isn't subtle. Professional writing sounds like a person who knows what they're talking about. Polished writing sounds like a person who ran their draft through Grammarly and called it done. One has friction. The other has been sanded smooth. Readers can tell which is which within two paragraphs.
If you want to go deeper, I wrote about the specific AI writing patterns that make text feel machine-generated and how to break each one at the sentence level. And if you're starting from an AI draft, the guide on how to edit AI writing to sound human walks through a complete editing workflow that picks up where this checklist leaves off.
Frequently asked questions
Can AI detectors actually spot polished writing?
Yes, and they're getting better at it. Most AI detectors look for the statistical fingerprints of language models: uniform sentence rhythm, predictable word choices, and flat emotional tone. Polished writing amplifies these patterns. A draft that has been overly smoothed by AI reads as more machine-like to a detector than a rough AI first draft, because the smoothing removes exactly the variations detectors look for.
Should I intentionally add errors to make my writing sound human?
No. Adding fake errors is a bad strategy that readers notice immediately, and it doesn't actually fool detectors effectively. The goal isn't to lower quality. It's to add texture: varied sentence rhythm, authentic opinions, natural transitions, and uneven pacing. These aren't errors. They're the natural byproducts of a person writing with their own voice.
Is it better to write from scratch than to edit AI output?
It depends on your goal. If you want a finished draft quickly, starting from AI output and editing manually works. But if you want to develop your own voice, writing from scratch is better because the act of drafting forces you to think through your ideas. AI drafts shortcut the thinking and leave you with someone else's structure. The best middle path: use AI for an outline, write the first draft yourself, then use AI only for spotting repetitive phrases and weak transitions.
How do I know if my AI writing is too polished?
The simplest test: read it out loud. If every sentence flows with the same smooth rhythm, if no sentence makes you pause or reconsider, if you never feel a shift in energy, your writing is too polished. A second test: send it to someone who knows your real voice. Ask them 'does this sound like me?' If they hesitate, the polish has flattened your voice.
What is the difference between polished writing and professional writing?
Professional writing is clear, precise, and confident. Polished writing is smooth, uniform, and impersonal. A professional piece sounds like a specific person with expertise. A polished piece sounds like anyone could have written it because there's nothing distinct left in the prose. The difference shows up in sentence rhythm, opinion density, and whether the reader can picture a human behind the words.