Grammarly is understood for catching typos, rephrasing awkward sentences, and saving you from sending “there” as an alternative of “their.” However now, it’s increasing into a brand new territory: AI detection.
In a world the place instruments like ChatGPT are used to write down every thing from emails to essays, it is sensible {that a} grammar instrument would evolve into one thing that may inform the distinction between human-written and machine-generated textual content. The true query is: does Grammarly’s AI detector really work?
We’ve already seen different detectors in the marketplace like CopyLeaks, GPTZero, Sapling, and so forth. Some are respectable. Some really feel like guesswork dressed up as evaluation. Grammarly’s detector is newer, however it already has one massive factor going for it: belief. It’s already built-in into hundreds of thousands of workflows, from college students to enterprise customers. Including AI detection to the combination looks as if a logical subsequent step.
However how dependable is it?
On this evaluate, we’ll break down how the Grammarly AI detector works, who it’s for, and the place it lands in comparison with different instruments within the house.
What Is the Grammarly AI Detector?
At its core, Grammarly’s AI detector is strictly what it feels like: a instrument that scans an article and tells you whether or not it thinks the textual content was written by a human or by AI.
You paste your content material into the editor, and Grammarly provides an AI chance rating based mostly in your enter.
It’s gentle. It’s imprecise. And it’s very on-brand for Grammarly: easy, user-friendly, and constructed to fit into an present workflow with out overwhelming anybody.
However there’s a caveat: Grammarly isn’t positioning this as a hardcore detection instrument. It’s not constructed for educators or establishments making an attempt to crack down on AI misuse. It’s extra of a mushy consciousness characteristic—one thing to nudge customers into being a little bit extra considerate about how their writing may come throughout.
Who Is It For?
If you happen to’re a instructor or tutorial establishment making an attempt to implement anti-AI insurance policies, Grammarly’s detector most likely isn’t what you’re in search of. It’s too surface-level, and it doesn’t provide the type of depth or confidence you’d need when making a high-stakes determination.
However for those who’re a author who makes use of AI to help—and also you simply need to be sure that your content material nonetheless sounds human—then this matches.
Grammarly’s AI detector might be finest for:
- Content material entrepreneurs making an attempt to keep away from that “ChatGPT” tone in weblog posts.
- College students who use AI instruments for brainstorming however nonetheless want handy in one thing that feels authentic.
- Professionals double-checking that AI-assisted writing doesn’t increase eyebrows.
Simply keep in mind that it’s a fast gut-check instrument, and don’t deal with it like a courtroom witness.
Testing Grammarly’s AI Detector
This will probably be in two elements: the primary will use straight content material from common LLMs and the latter will probably be content material from Undetectable AI, our favourite AI humanizer.
Grammarly vs. Gemini
Take a look at #1
Grammarly: Efficiently detected textual content as AI-generated.
AI Chance Rating: 100%
Take a look at #2
Grammarly: Efficiently detected textual content as AI-generated.
AI Chance Rating: 66%
Take a look at #3
Grammarly: Efficiently detected textual content as AI-generated.
AI Chance Rating: 66%
Take a look at #4
Grammarly: Efficiently detected textual content as AI-generated.
AI Chance Rating: 100%
Take a look at #5
Grammarly: Efficiently detected textual content as AI-generated.
AI Chance Rating: 66%
Grammarly vs. Undetectable AI
Take a look at #6
Grammarly: Efficiently detected textual content as AI-generated.
AI Chance Rating: 100%
Take a look at #7
Grammarly: Efficiently detected textual content as AI-generated.
AI Chance Rating: 100%
Take a look at #8
Grammarly: Categorised enter textual content as human-written.
AI Chance Rating: 0%
Take a look at #9
Grammarly: Categorised enter textual content as human-written.
AI Chance Rating: 0%
Take a look at #10
Grammarly: Categorised enter textual content as human-written.
AI Chance Rating: 0%
Common Rating
The Backside Line
Grammarly’s AI detector is okay for what it’s: a light-touch instrument that offers you a fast sense of whether or not one thing feels machine-written. It really works finest for catching uncooked, unedited output from instruments like ChatGPT or different mainstream turbines. If somebody copies and pastes instantly from an AI with out a lot cleanup, Grammarly will often catch that.
However as soon as issues get even a little bit extra refined—both by a human editor or a instrument constructed for stealth—the detector begins to overlook. It is particularly inconsistent when coping with rewritten content material from AI humanizers like Undetectable AI. In these circumstances, Grammarly both provides imprecise warnings or misses completely.
In comparison with extra strong choices like Sapling, Winston AI, or CopyLeaks, Grammarly simply isn’t as dependable. It doesn’t go deep, and it doesn’t provide a lot transparency.
That stated, for those who’re already utilizing Grammarly and simply desire a fast gut-check, it’s a helpful add-on. Simply don’t mistake it for a devoted detection instrument. It’s not there but.
