AI-generated writing has come a great distance — and now the instruments that make it sound much less like AI are catching up too.
We’re not simply speaking about grammar checkers or tone polishers. We’re speaking about full-on “humanizers” — instruments that take AI-written content material and make it really feel like an individual truly sat down and wrote it.
Undetectable AI has been centered on this house from the start. Grammarly? Not a lot. However with its new AI humanizer, Grammarly is entering into that lane. So we figured it’s value asking: which one truly does a greater job at making AI writing really feel human when paired with ChatGPT?
Let’s break it down.
What’s Undetectable AI?
Undetectable AI isn’t constructed to make your writing sound prettier — it’s right here to make your AI-generated content material sound undetectable.
Which means it doesn’t simply rewrite for tone or grammar. It targets the precise markers that set off AI detection instruments: overused phrases, overly structured transitions, and that telltale “machine voice” most giant language fashions can’t shake.
It’s largely utilized by college students, writers, and entrepreneurs who need the pace of AI with out getting flagged for it. And it does that job properly. Particularly with options just like the Writing Type Replicator, which helps you to practice the system to sound such as you, not only a generic human voice.
So in case your purpose is to move AI detection — or at the very least fly beneath the radar — this device was actually designed for that.
What’s Grammarly?
Grammarly used to only catch your typos. However as we speak, it’s attempting to be your full-on writing companion. And to be honest, it’s come a great distance.
Immediately’s Grammarly can counsel rewrites, change tone, and even generate content material from scratch. The brand new AI humanizer is its reply to the rising want for much less robotic-sounding content material — the sort of output that doesn’t instantly scream “ChatGPT wrote this.”
However right here’s the factor: Grammarly isn’t actually attempting to cover the AI-ness of your writing. It’s extra about smoothing it out. The humanizer leans into pleasant, easy-to-read polish — much less for evasion, extra for engagement.
That makes it nice for emails, blogs, and social posts. But when your purpose is to keep away from detection? Grammarly’s not the device for that.
Undetectable AI vs. Grammarly: Head-to-Head with ChatGPT
Check #1
Undetectable AI: Efficiently camouflaged as human-written.
AI Probability Rating: 0%
Grammarly: Detected as AI-generated.
AI Probability Rating: 100%
Check #2
Undetectable AI: Detected as AI-generated.
AI Probability Rating: 64.4%
Grammarly: Detected as AI-generated.
AI Probability Rating: 100%
Check #3
Undetectable AI: Efficiently camouflaged as human-written.
AI Probability Rating: 0%
Grammarly: Detected as AI-generated.
AI Probability Rating: 100%
Check #4
Undetectable AI: Efficiently camouflaged as human-written.
AI Probability Rating: 0.7%
Grammarly: Detected as AI-generated.
AI Probability Rating: 100%
Check #5
Undetectable AI: Efficiently camouflaged as human-written.
AI Probability Rating: 0%
Grammarly: Detected as AI-generated.
AI Probability Rating: 100%
General Rating
The Backside Line
In the event you’re simply attempting to enhance tone and polish, Grammarly’s AI humanizer is ok. It makes issues sound higher, clearer, friendlier — which is strictly what most customers need.
But when your purpose is to rewrite AI content material in order that it doesn’t really feel like AI in any respect, Grammarly simply doesn’t go far sufficient, for now.
Undetectable AI is a device with a really particular function — and that focus exhibits. It’s not only a humanizer. It’s a strategist. It understands what makes content material sound artificial and actively works in opposition to it.
Backside line: Grammarly makes AI content material sound higher. Undetectable AI makes it sound actual.
Two completely different instruments. Two completely different objectives. It simply is determined by what you’re aiming for.
