Detect tower · floor

Does Grammarly count as AI? The honest answer

The question underneath the question

“Does using Grammarly count as AI?”

It is asked a thousand times a month in the United States alone, and the honest answer is that it depends on the setting you were given, not on the software. A spelling correction and a generated paragraph are both produced by the same installed extension, and an institution’s rule is written about the second, not the first.

Which is why the useful move is not to argue about the category. It is to be able to show what actually happened — and Grammarly now ships a feature for exactly that, which almost nobody searching this question knows about.

What Grammarly’s Authorship records, in its words

  • “Typed by human”
  • “Copied from a source” — including AI-generated text
  • “Copied from an unknown source”
  • Text typed and then “modified with our on-device AI rephrasing”
  • Text edited by “grammatical error correction, clarity rewrites, and word choice suggestions”

That last category is the one that answers the question directly. A correction is recorded separately from a generation. If your work was typed and then tidied, the record says so; if a paragraph arrived from somewhere else, the record says that too.

Two limits worth knowing before relying on it. The distinction between a paste from ChatGPT and a paste from Wikipedia requires clipboard access: with it, Grammarly says it can “determine whether text was copied from a generative AI source such as ChatGPT or Claude, or from a more traditional online source such as Wikipedia”. Without it, pasted text is only ever categorised as an unknown source. And it works in Google Docs, Microsoft Word and Grammarly’s own editor — not everywhere you might write.

The part that makes it usable by the people who need it most: reports are on every plan. Grammarly states that all plans, “including the Free plan”, allow you to “Generate an unlimited number of Authorship reports” and to share them. Data is stored on the device while you write, and shared reports are kept “for 12 months or until you delete your account”.

Before anything else on this floor: does grammarly count as ai is the question people actually arrive with, and it has an answer. A grammar checker is the most widely installed writing tool in the world, and almost nobody installs it as a program. It arrives as a browser extension, and that single fact is the most important thing on this floor.

An extension that corrects your writing wherever you write has to be able to read wherever you write. That is not a flaw or a scandal — it is what the feature requires. But it is worth seeing stated plainly, by the companies themselves.

What a grammar-checking extension can see

“Content we collect also includes information about your browsing session and the content of websites visited when using our browser extensions… this may include the content and metadata of all websites you’re visiting during your active browser session (e.g. website text, media, publisher and author names, URLs).”

From the privacy policy covering LanguageTool, read 21 August 2026. It is quoted here not as an accusation but as a description: this is what a browser extension that checks your writing everywhere has to be able to do. The permission is the product.

Two of the biggest names here belong to the same company

LanguageTool’s privacy policy is issued by Learneo, Inc. — the same business behind QuillBot, whose product menu carries a paraphraser, an AI detector and an AI humaniser. Read on their own sites on 21 August 2026. Worth knowing before treating any two of those tools as independent second opinions.

The searches split by how far along somebody is. Grammar check and english grammar check are people who want a sentence looked at once. A grammar checker or a free grammar checker is somebody choosing a tool to keep. Grammarly is the name that has become the category, and a punctuation checker is the narrowest and most answerable request of the lot.

With that established, the rest of the floor is the ordinary question: what these tools actually catch, what they miss, where the free versions stop, and the point at which a checker stops improving your writing and starts sanding it down.

One phrase in this cluster is worth answering plainly, because it is the one typed at midnight: does grammarly count as ai cheating. Nobody outside your institution can answer it, and any page that claims to is guessing about rules it has not read. What this floor can do is tell you what the software records, so that the conversation is about evidence rather than about impressions.

Where to start

Five ways in.

“Which one should I install?”
Start at what they catch
“Is the free version enough?”
Almost always — free and paid
“I do not want an extension reading everything.”
Go to without an extension
“My writing sounds flat after I accept the suggestions.”
That is when to ignore it
“English is not my first language.”
Read what they catch

What they catch

Three different jobs sold under one name: mechanical correctness, clarity, and style. Only the first has right answers.

Spelling and mechanicsThe part that is genuinely solved, works offline, and is already inside your word processor.Being built
When a detector is wrongThe research on who gets flagged unfairly, and what a record of your own process is worth.Open this floor →
Actual grammarAgreement, tense and structure — where the tools are good and where they confidently invent rules.Being built
Punctuation checkerCommas, semicolons and the suggestions that are house style rather than error.Being built
Style and clarityReadability scores and “too wordy” warnings, which are opinions with a number attached.Being built
Writing in a second languageWhere these tools earn their place most clearly, and the corrections to be sceptical of.Being built

Free and paid

The honest arithmetic. For most writing the free tier is not a stripped demo — it is the part that does the work.

What the free tiers includeSpelling, basic grammar and punctuation, which is the majority of what anybody needs.Being built
What paying addsStyle, tone and rewriting suggestions — useful to some writers and unnecessary to most.Being built
Free grammar checker optionsThe tools that cost nothing at all, including one that can run without sending text anywhere.Being built
The subscription questionWorking out whether the paid tier is buying you anything you use.Being built

Without an extension

For confidential work, client documents or anybody who would rather not grant a browser-wide permission. All of these routes exist and most people never hear about them.

What is already in Word and DocsA capable checker you already have, that never leaves the document.Being built
Checking without installingPasting into a checker rather than granting it everything, and what you trade.Being built
Running one locallyThe open-source route, where the checking happens on your own machine.Being built
Reading the permissionsWhat a browser tells you before you install, and how to read that screen properly.Being built
Confidential documentsLegal, medical and unpublished work — where the extension should simply be off.Being built

When to ignore it

The wing that keeps your writing yours. A checker optimises for a general reader, and you are usually writing for a specific one.

Suggestions that are just house styleSerial commas, passive voice, sentence length — preferences wearing the costume of rules.Being built
Voice and rhythmWhat gets lost when every suggestion is accepted, and how to hear it happening.Being built
Technical and legal writingWhere the “simpler” suggestion changes the meaning, which matters more than it reads.Being built
Accepting all at onceWhy the bulk button is the one feature worth never using.Being built

What this tower will not do

It will not tell you to install an extension without saying what it can see. The quotation at the top is from the company’s own policy, and anybody choosing one of these tools deserves to read it before the install button, not after.

It will not rank the checkers yet. That needs the same set of real documents run through each of them over weeks, with the misses and the false corrections counted — which is a test, and it is the only thing worth publishing here.

And it will not treat a suggestion as a correction. A great deal of what these tools flag is preference rather than error, and a writer who accepts everything ends up sounding like every other writer who accepted everything.

One closing note on how this floor was researched, since it is the reason it says what it says. The quotation at the top was not taken from a review or a summary; the policy pages of these companies block automated reading, so they were opened in an ordinary browser and read the way a customer would read them. That is also how the second observation surfaced — that two of the largest names in this tower share a parent company. Neither fact is hidden, and neither one appears in the comparison articles that rank above this page. What holds instead is simple: the policy quotations here were read on the companies’ own sites, with the date.

Where this page got its facts

  1. The privacy policy covering LanguageTool, issued by Learneo, Inc. — what is collected from browser extensions and from content you provide — languagetool.org, read 21 August 2026.
  2. QuillBot’s product menu, listing a paraphraser, an AI detector and an AI humaniser under the same company — quillbot.com, read 21 August 2026.
  3. Grammarly Support — About Grammarly Authorship, the categories it records, the clipboard limit and what free plans include — support.grammarly.com, read 21 August 2026.

Written by Alberto Gulotta

Founder and editor of AI Tools Primer, writing from Palermo, Italy. Thirty-five years of taking computers apart, starting with a Commodore 64 — the long version is on the about page.

Something wrong on this page? Write to aitoolsprimer@gmail.com and it gets fixed.

Written on 21 August 2026.

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