AI-generated writing has come a good 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 targeted on this area from the start. Grammarly? Not a lot. However with its new AI humanizer, Grammarly is moving into that lane. So we figured it’s price 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 principally utilized by college students, writers, and entrepreneurs who need the velocity of AI with out getting flagged for it. And it does that job properly. Particularly with options just like the Writing Fashion Replicator, which helps you to practice the system to sound such as you, not only a generic human voice.
So in case your aim is to go AI detection — or a minimum of fly underneath the radar — this instrument was actually designed for that.
What’s Grammarly?
Grammarly used to only catch your typos. However at present, it’s attempting to be your full-on writing associate. And to be honest, it’s come a good distance.
In the present day’s Grammarly can recommend 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 type 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 aim is to keep away from detection? Grammarly’s not the instrument 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%
Total Rating
The Backside Line
When you’re simply attempting to enhance tone and polish, Grammarly’s AI humanizer is okay. It makes issues sound higher, clearer, friendlier — which is strictly what most customers need.
But when your aim 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 instrument with a really particular function — and that focus reveals. It’s not only a humanizer. It’s a strategist. It understands what makes content material sound artificial and actively works towards it.
Backside line: Grammarly makes AI content material sound higher. Undetectable AI makes it sound actual.
Two completely different instruments. Two completely different targets. It simply is dependent upon what you’re aiming for.
