@PerleLabs I’m going with Middle because the stone texture and lighting look slightly too clean and evenly balanced, which makes it feel more AI-generated than the others.
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EmaGo
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Alright… this is it. Final Human CAPTCHA challenge 👉👉
We saved the best for last. There are 3 images. Only ONE is AI-generated.
Your job is to tell us if it's the one on the Left, Middle, or Right.
Submit your guesses by Sat, Feb 28 at 11:59pm UTC. As usual we'll be revealing the answers on Sunday!
If you got 3+ right, we’ll share how to claim your reward next week.
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@PerleLabs The Left Image
The lighting is consistent with a sunset or sunrise, the shadows on the balloon itself look natural, and the smaller balloons in the background have a realistic sense of depth and atmospheric perspective.
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It's the final week of Human CAPTCHA: Round 7
You made it this far… but we’re not going easy on you. One of these is a real photograph of a hot air balloon, the rest is AI-generated. Can you tell which one it is?
Respond with Left, Middle, or Right and tell us why below!
Submissions close Sat, Feb 28 at 11:59pm UTC. Answers revealed Sunday.
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@PerleLabs Right
My opinion is that the car on the right is real, as there are traces and cracks on the asphalt, even on the marking line you can see traces, and the building looks real, but on the left there is an AI created, perfect asphalt and blurred photos
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Perle Human CAPTCHA #6 🏎️
One of these sports car photos is real. The other was generated by AI.
Comment “left” or “right” with your guess, and tell us why 👀
Submissions close Sat, Feb 21 at 11:59pm UTC. Answers revealed Sunday.
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@PerleLabs Right
the photo on the right is the real one because the clouds in the sky on the left don't look realistic, and their reflection in the water doesn't match.
With clouds like those, it should be dark there, not that bright.
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Perle Human CAPTCHA #5 📸
Let’s keep your captcha streaks alive. One of these vacation photos is real, and one was generated by AI.
Which one is real? Reply "left" or "right" and explain why ↓
This week's submissions close Sat, Feb 21th at 11:59pm UTC. Both answers will be revealed on Sunday.
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@PerleLabs Left is real.
The fur, lighting and vibe feel natural and a bit messy, like a normal wildlife photo. The right one looks too perfect and cinematic, which usually screams
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Perle Human CAPTCHA #4
It's time to put your human judgement to the test again. One of these images of a tiger is a real photograph, one was generated by AI.
Which one is real? Reply "left" or "right" and tell us why ↓
This week's submissions close Sat, Feb 14th at 11:59pm UTC. Both answers will be revealed on Sunday 👀
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@PerleLabs Right because the lighting, wood imperfections, and the orange’s natural texture look organically imperfect, while the left image appears slightly too clean and rendered.
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Perle Human CAPTCHA #3 📷
One of these images of fruit is a real photograph, one was generated by AI.
Which one is real? Reply "left" or "right" and why 👇
You have until Sat, Feb 14th at 11:59pm UTC. This week's answers will be revealed on Sunday.
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@PerleLabs Human
The lighting on the peaks is absolute rizz, but AI usually fumbles the water reflection details. Going with Human because those imperfections feel too perfect. Cooking with real paint here.y
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Perle Human CAPTCHA Round 2 ✌️
Was this landscape art created by a real artist, or AI generated?
Reply with "Human" or "AI" and tell us why!
Deadline is Sat, Feb 7th at 11:59pm UTC. This week's answers will be revealed on Sunday.
PS: Use your own judgement and trust your instincts!
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@PerleLabs H
This photo looks real because the lighting and shadows are natural and imperfect.
The details and readable text on the signs are consistent, which AI often gets wrong.
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Perle Human CAPTCHA Round 1
Was this photo taken by a real person or generated by AI? 📸
Reply with a letter and tell us why:
H = Human
A = AI
Deadline to submit is Sun, Feb 7th at 11:59pm UTC. It's go time 👇
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Think you can outsmart AI? 😏
Perle's Human CAPTCHA is here.
> Test your ability to detect AI-generated content
> 2 questions every week
> Get 3+ correct across 4 weeks to earn an exclusive badge
The real AI challenge begins. First challenge below.
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