Free GPT checker
Paste any text and find out if ChatGPT wrote it
How it works
01Paste the text
Copy an essay, email, review or message and paste it above
02Darwin reads it
We check the writing for the patterns ChatGPT and other AI tools leave
03Get a clear answer
In a few seconds we let you know if a person or AI wrote it
What we check
ChatGPT and more
Text from ChatGPT, Claude, Gemini and other AI writing tools.
Reworded AI text
AI text that was run through a rewording tool to hide where it came from.
Scam messages
Emails and texts that scammers write with AI so they sound real.
More information
How does a GPT checker work?
AI writing tends to be very even and predictable. The checker looks for those patterns across the whole text.
How long should the text be?
At least 100 words. Longer text gives a more reliable answer. The limit is about 650 words.
Can the checker be wrong?
Yes. No AI checker is perfect so treat the result as one signal and not as proof.
Can I check pictures and videos too?
Yes. Tap the picture button under the text box to upload a picture or a video.
Is this GPT checker free?
Yes. Check as much text as you like.
Who makes this site?
Darwin Labs Inc. Darwin checks texts, calls, emails, and socials for you and your family.
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