AI Writing Detector: How to Check for AI-Generated Content
Do you ever wonder if something you’re reading is written by a real person—or by a robot?
Yeah. Me too.
These days, AI tools are everywhere. They help us write essays, emails, blogs—even poems! But sometimes, teachers or editors wanna know: Was this written by a human… or by AI? That’s where an AI Writing Detector comes in.
It’s like a lie detector. But for words.
Today, I’m gonna take you on a journey. We’ll explore some cool tools that help detect AI-written stuff. Some work great. Some? Not so much. But they’re all part of this weird, exciting world of AI.
Let’s dive in.
1. QuillBot – More Than Just a Paraphraser
Okay, let’s talk about QuillBot.
At first, QuillBot wasn’t even an AI writing detector. It was made to rewrite sentences. You paste some text, and boom—it gives you a better version. Or at least a different one.
But wait. Here’s where it gets wild. People start using QuillBot to hide AI writing.
Say you use ChatGPT to write a paragraph. Then you throw it into QuillBot. It rewrites the paragraph, making it look more “human.” Smart, right?
Well… teachers figured that out too.
Now QuillBot also helps detect AI-written content. It’s not perfect. But it’s smart. It checks sentence patterns. Looks at how things are phrased. Finds clues.
I tried it once with a school project. I let AI write half, and I wrote the other half. Then used QuillBot’s detector. It totally knew which parts I faked.
Kinda scary. But cool.
Pros?
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Super easy to use.
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You can check and fix content in the same place.
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It explains why it thinks something is AI.
Cons?
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Not always 100% accurate.
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If you paraphrase too much, it may miss the AI parts.
Still, it’s like having a writing assistant. And a truth detector. In one.
2. GPTZero – The Teacher’s Favorite Tool
Now let’s get real about GPTZero.
This tool is kinda famous. Especially in schools.
Why? Because it was built to help teachers. Yep. A real human (not an AI) made GPTZero to catch AI-written essays. You paste some text, click a button, and it gives you a score.
Low score? Probably human.
High score? Probably AI.
When I first used GPTZero, I thought, “Oh, this is gonna be so basic.” Nope. It shows burstiness and perplexity. Two big words. But here’s the deal:
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Burstiness means how the writing changes. Like… do some sentences feel long and others short?
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Perplexity is how “random” the writing feels. Human writing is more random.
AI? Usually too perfect. Too smooth.
GPTZero notices that.
Pros?
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It’s built for classrooms.
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Super clean interface.
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Gives a percentage of “likely AI.”
Cons?
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Doesn’t always explain deeply.
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Might flag human writing as AI sometimes.
Still, this is a teacher’s best friend. And a student’s worst nightmare.
If you’re using AI tools to cheat? Yeah… this might catch you.
3. Scribbr – For Essays and Real Talk
Ever heard of Scribbr?
It’s usually known for checking plagiarism. Like… if you “borrow” too much from Wikipedia. Or someone else’s paper. Scribbr can tell.
But now? They’ve joined the AI game.
Scribbr’s AI detector is pretty awesome. It’s not just about catching AI. It’s about helping you write better.
Say you’re writing an essay. You want it to be your own words. Scribbr checks it. If it finds AI parts, it says, “Hey, you might wanna rewrite this.”
It’s not yelling at you. It’s guiding you. Like a helpful tutor.
One time, I used Scribbr to check my science report. I thought it was all mine. But I forgot I copied a few sentences from ChatGPT. Scribbr found ‘em. I fixed ‘em.
Saved me from big trouble.
Pros?
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Detailed reports.
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Combines plagiarism and AI checks.
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Works great for academic writing.
Cons?
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Limited free checks.
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Not ideal for casual writing.
If you’re a student? Use Scribbr. Seriously. It’s like having a second brain.
4. ZeroGPT – The Silent Detective
Let’s meet the quiet hero: ZeroGPT.
It doesn’t look flashy. No big colors. No dancing robots. But it works.
ZeroGPT is designed to detect text from ChatGPT and other AI tools. It scans deeply. Like, real deep. The kind of deep that makes you nervous.
I once pasted a full blog post into ZeroGPT. I thought, “No way it’ll know.” But oh—it knew.
It highlighted whole paragraphs. Said, “This is likely AI-generated.” And it was right. Every. Single. Time.
Pros?
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Detects ChatGPT output really well.
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Fast results.
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Highlights specific sentences.
Cons?
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The design is basic.
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Doesn’t always explain why.
But if you want a fast, no-nonsense AI writing detector? ZeroGPT is your guy.
Quiet. Sharp. Accurate.
5. Undetectable AI – Wait… What?
Now this one’s tricky.
Undetectable AI is not a tool to detect AI writing. Nope. It’s the opposite. It’s a tool that tries to make AI writing invisible.
Scary, huh?
You paste your ChatGPT text into Undetectable AI, and it rewrites it. Makes it more “human.” More sneaky. The goal? To bypass AI detectors.
Some people love it. Others say it’s cheating.
I tried it for fun. Gave it a boring AI paragraph. It made it better. More personal. More “me.”
Then I ran the new version through GPTZero and ZeroGPT. Neither caught it.
Whoa.
Pros?
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Hides AI writing well.
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Makes content more human.
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Works fast.
Cons?
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Feels like it’s made for cheating.
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Might remove your original style.
Here’s the deal: if you’re using AI tools to help you write, that’s okay. But don’t lie about it. Don’t use tools to cover it up.
Be real. Even if AI helped, your ideas still matter.
6. Copyleaks – Serious About Truth
Last but not least: Copyleaks.
This one feels professional. Like… grown-up level.
Copyleaks works in schools, businesses, even government stuff. That’s how serious it is. Their AI Writing Detector is super smart. It checks structure. Logic. Flow. Repetition.
I tried it with a creative writing piece. Just to test it. It gave me a full report. Not just “AI or not.” It told me why.
“This sentence is too structured.”
“This paragraph feels unnatural.”
Wow.
Pros?
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Deep reports.
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Trusted by schools and companies.
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Great accuracy.
Cons?
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Can feel too serious.
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Might be overkill for small tasks.
But if you want the truth? And nothing but the truth? Copyleaks is solid.
Conclusion: The AI Writing Game Is Changing
So what do we learn from all this?
Well… AI is here. It writes stuff. Good stuff. Fast stuff. But now? We have tools like the AI Writing Detector to tell what’s real—and what’s not.
Some tools, like QuillBot and Undetectable AI, help rewrite text. Others, like GPTZero, ZeroGPT, Scribbr, and Copyleaks, are out here catching the AI footprints.
It’s a little scary. But also exciting.
As students, creators, or even just curious minds, we have a job. To be honest. To be smart. To use AI tools as helpers—not cheaters.
Use them wisely. Check your work. Learn the rules. And stay human.
Even in an AI world.
