7 Signs of AI-Written Text (and How to Smooth Them Out)
Spot AI-written text by 7 telltale signs: uniform rhythm, filler phrases, generic vocabulary, hollow conclusions, and more — plus a concrete fix for each one.
The clearest signs of AI-written text are uniform sentence rhythm, hedging filler phrases, a generic mid-formal vocabulary, formulaic transitions, vague claims with no specifics, hollow restating conclusions, and a complete absence of point of view. None of these is a sign of bad writing — AI drafts are usually accurate and clean. They are signs of unfinished writing: text that has the structure but not the texture of something a person wrote. Below, each sign comes with a quick way to recognize it and a concrete fix.
Whether you are reviewing your own AI draft or evaluating a piece someone handed you, this is the field guide.
A Quick Caveat Before the List
These signs are reliable indicators, not proof. Skilled human writers sometimes write in uniform sentences or lean on filler — and good AI drafts, once edited, show none of these traits. Treat the list as a diagnostic for what to improve, not a verdict on authorship. For why even human writing can get flagged, see our piece on why AI detectors flag human writing.
Sign 1: Uniform Sentence Rhythm
How to spot it: Read a paragraph aloud. If every sentence takes roughly the same breath — usually 15 to 25 words, one main clause plus one subordinate clause — you are looking at AI rhythm. Human writing lurches: long, long, short, medium, very short.
How to smooth it out: Break at least one long sentence into two. Make one of them short. Start an occasional paragraph with a four-word sentence. Variation is the single highest-impact fix.
Sign 2: Hedging Filler Phrases
How to spot it: Scan for phrases that sound thoughtful but say nothing — "It is important to note that," "It is worth mentioning," "In today's fast-paced world," "When it comes to."
How to smooth it out: Delete the phrase and begin with the real subject. "It is important to note that timing matters" becomes "Timing matters."
Sign 3: Generic, Mid-Formal Vocabulary
How to spot it: AI overuses a recognizable set of words — utilize, leverage, facilitate, robust, seamless, comprehensive, delve, navigate, landscape, realm, tapestry, testament. One or two are fine; a cluster of them is a signal.
How to smooth it out: Swap them for plainer equivalents (use, help, solid, smooth) and keep a few words that genuinely sound like you or your brand.
Sign 4: Formulaic Transitions
How to spot it: Paragraphs that open with labeled connectors — Furthermore, Moreover, Additionally, In conclusion — used like signposts rather than real links between ideas.
How to smooth it out: Connect ideas through content instead of labels. Replace "Furthermore, the process is fast" with "The process is fast too — most drafts come back within a minute."
Sign 5: Vague Claims With No Specifics
How to spot it: Soft quantifiers everywhere — many, various, significant, numerous, several, a wide range of — and not a single concrete number, name, or example.
How to smooth it out: Pin the vague claim to something real. "This can significantly improve results" becomes "This cut our onboarding time from two weeks to four days." If you do not have the number, that is a prompt to add genuine knowledge.
Sign 6: Hollow, Restating Conclusions
How to spot it: A final section that begins "In conclusion" and simply re-summarizes every point already made, adding nothing.
How to smooth it out: Replace it with one of: a single sharp takeaway, a concrete next step, or an honest caveat about when the advice does not apply. A real ending gives the reader something to do or remember.
Sign 7: No Point of View
How to spot it: The text never says what the author thinks. It summarizes the consensus, presents balanced options, and never commits. You finish it without knowing the writer's actual recommendation.
How to smooth it out: Add two or three genuine judgments. "Honestly, most teams overthink this." "I'd skip the third option." "This works for B2B; for consumer apps, it doesn't." A point of view is what separates content with real E-E-A-T from generic filler.
The Signs at a Glance
| Sign | Quick test | Fix |
|---|---|---|
| Uniform rhythm | Read aloud — metronome beat? | Vary sentence length |
| Filler phrases | Search "it is important to note" | Delete; start with the noun |
| Generic vocabulary | Spot utilize, leverage, robust | Swap for plain words |
| Formulaic transitions | "Furthermore" opening a paragraph | Connect via content |
| Vague claims | Soft quantifiers, no numbers | Add concrete specifics |
| Hollow conclusion | "In conclusion" + restating | Real takeaway or next step |
| No point of view | No author opinion anywhere | Add genuine judgments |
Smoothing Out the Signs Efficiently
Signs 1 through 4 are mechanical and rule-based. The AI Humanizer targets exactly those — it reworks sentence rhythm, removes filler, reshapes vocabulary and transitions in one pass, and shows a before/after score so you can confirm the patterns are gone.
Signs 5, 6, and 7 — specifics, a real conclusion, and a point of view — require knowledge and judgment the tool does not have. That is your contribution. The recommended workflow:
- Run the draft through the Humanizer to clear Signs 1 through 4.
- Edit in your own specifics, conclusion, and point of view (Signs 5 through 7).
- Re-check with an AI detector to find any passage that still reads as machine-generated.
For the full editing method, see how to make AI text sound more human; for a draft-specific walkthrough, see how to edit a ChatGPT draft.
Why These Signs Exist
If you want to understand why AI text shows these particular traits — rather than just how to fix them — it comes down to how models generate language: by predicting the most probable next word. Our article on why AI writing sounds robotic explains the mechanism in full. The short version: probable writing is average writing, and average writing has no texture.
Where to Go Next
- Want the underlying explanation? Read why AI writing sounds robotic.
- Ready to fix a draft step by step? Follow how to edit a ChatGPT draft.
- Students and educators evaluating AI-assisted work should review our Students & Educators solutions page.
Frequently asked questions
What is the most reliable sign that text was written by AI?
Uniform sentence rhythm is the most reliable single sign. AI produces sentences of remarkably similar length and structure, while human writing varies far more. Reading a passage aloud and listening for a metronome-like beat is a quick, dependable test.
Can you tell if text is AI-written just by reading it?
Often, yes — if you know the patterns. Filler phrases, generic vocabulary, hollow restating conclusions, and a complete absence of point of view are visible to a trained reader. But no manual check is definitive, and human writers sometimes show the same traits.
Do these signs mean the text is bad?
No. AI-written text is usually accurate and grammatically clean. The signs indicate a lack of texture and specificity, not errors. They tell you the draft is unfinished and needs an editing pass, not that it should be discarded.
How do I remove the signs of AI writing from my draft?
Each sign has a direct fix: vary sentence length, delete filler, replace generic words, rewrite formulaic transitions, add concrete specifics, write a real conclusion, and insert a point of view. An AI humanizer can automate the mechanical fixes so you can focus on the specifics and judgment.
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