@PerleLabs Middle
The sky texture and architectural detailing look slightly too uniform and “clean,” and some structural elements feel subtly over-smoothed compared to typical real-world photography.
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.
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.
@PerleLabs Right
The right image shows natural building textures, realistic road imperfections, and authentic reflections consistent with a real camera photo.
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.
@PerleLabs Right
The right photo shows highly complex and naturally irregular details such as shapes of the building, realistic lighting, gradients on the mountain and organic crowd on the beach. Also the depth, shadow transitions, and small imperfections which is normal in real photograph.
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.
@PerleLabs Right
The tiger's muscles, fur texture, and facial features are detailed and proportionate. Its posture and the way it interacts with the environment (paw placement, weight distribution) are natural and lifelike.
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 👀
@PerleLabs Right
The right image just feels more real. The lighting is soft and natural, the shadows make sense, and the texture of the orange peel has those small, imperfect details you’d expect in a real photo.
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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