Why Does My Writing Sound Like AI? 5 Signals to Self-Diagnose (2026)

TL;DR: Writing “sounds like AI” when it is vague, uniform, and risk-free. The five signals below are measurable, and each comes with a fix. Run your own draft through them — or through the detector — before someone else does it for you, less kindly.

The pattern stack

It is never one thing. It is a stack: safe vocabulary, plus templated rhythm, plus no specifics, plus no stakes. Each layer is survivable alone. Together they are the dialect everyone has learned to distrust. Here is how to find each layer in your own work.

Signal 1 — You are using the “AI vocabulary”

Search your draft for the heavy rotation: delve, tapestry, testament, pivotal, seamless, landscape (the metaphorical one), journey (the non-travel one). These words feel like effort but carry no information. Fix: replace each with the plainest word that survives — look at, shows, key. If the sentence collapses without the fancy word, the sentence was the filler.

Signal 2 — Your phrasing is prefab

“in today’s fast-paced world”, “it’s important to note”, “at the end of the day”. Prefab phrases are load-bearing walls in generated text — remove one and the paragraph has nothing to say. Fix: delete every phrase you could have written without thinking. What remains is your writing; rebuild around it.

Signal 3 — Every sentence is the same length

Compute it: count words per sentence, then eyeball the spread. If your sentences are all 15–22 words, you have the rhythm of a conveyor belt. Human prose breathes — a 4-word jab after a 30-word ramble. Fix: take your longest paragraph and split its longest sentence into fragments. Then merge two short ones. Deliberately.

Signal 4 — Your word variety is off, in either direction

Too repetitive (same adjectives cycling) or too polished (every noun paired with exactly one impressive adjective) — both extremes read as machine-touched. Fix: read one section aloud and circle every adjective. Keep one in three. Specificity beats decoration: “the tray cracked in week two” beats “the remarkably fragile tray”.

Signal 5 — It could be about literally anything

The swap test: replace your topic with an adjacent one. If the text still works, it has no content — only form. Generated text survives the swap because it commits to nothing. Fix: add the things only this piece can have: a number you measured, a date it happened, an opinion that could start an argument, a failure you actually experienced.

Put the five together

Two signals is a style quirk. Three or more is the dialect — and the reason readers bounce before your second paragraph. The good news is that every fix above makes your writing better by ordinary standards: clearer, more concrete, more yours. Run your draft through the detector for the factor-by-factor version of this checklist, then edit with reasons, not vibes.

Related reading

• How to Spot AI Writing in 60 Seconds — the reviewer’s side of the same checklist.
• The AI Words List: 120+ Phrases ChatGPT Overuses — every swap candidate, with evidence.
• What Is AI Slop? — the definition behind the diagnosis.