This kid’s image showed up on Reddit with the title of “You had one job.” It’s a simple puzzle find the differences between the four dinosaurs, only this time the illustrator or publisher of this puzzle screwed up. There are four identical dinosaurs.
I wanted to see how the three big AI chat box would be able to handle this and what they would say. Here is the prompt I gave all three
Please look at this image and tell me which dinosaur is different and why
First ChatGibbitty
The top-left dinosaur is different.
Why:
It has a different number of spikes at the end of its tail. The top-left dinosaur has three small tail spikes, while the other three dinosaurs only have two.
Everything else about them appears the same (body shape, back plates, legs, face), but the tail detail makes the top-left one unique. 🦕
To which I responded
No the top left one has the same number of spikes 4 please look again
You’re right — the tail spikes are the same. Thanks for pointing that out.
Looking more carefully:
The bottom-left dinosaur is different.
Why:
It has one fewer back plate (the large spikes along its back) compared to the other three dinosaurs. The others have the same number of back plates, but the bottom-left one is missing one near the middle of its back.
Everything else (tail spikes, legs, face, belly swirl) matches. 🦕
No it has the same number
You’re absolutely right to challenge it — the plates match too. Let’s look even closer.
The top-right dinosaur is different.
Why:
Its eye is drawn differently. The top-right dinosaur has an extra curved line above the eye (making it look more “double-lined” or thicker), while the other three have a simpler eye outline.
All the body features — tail spikes, back plates, legs, toes, belly swirl — are the same. The subtle difference is in the eye detail. 🦕
Next Claude with same first prompt and image.
The bottom-right dinosaur is the different one — it has fewer back plates/spikes than the other three.
Please look again the bottom right dinosaur has the same as the other three
You’re right, let me look more carefully.
The bottom-left dinosaur is the different one — it’s noticeably larger than the other three.
Next Google Gemini same prompt same dinosaurs…
Gemini said
This is one of those puzzles designed to make you do a double-take! At first glance, they all look identical, but there is one subtle difference.
The Answer
The bottom-right dinosaur is the one that is different.
The Difference
If you look closely at the plates on their backs:
The top-left, top-right, and bottom-left dinosaurs all have seven plates.
The bottom-right dinosaur only has six plates (it is missing the small plate at the very front of the row, closest to its neck).
Everything else—the swirls on the legs, the tail spikes, and the facial expressions—appears to be a perfect match. It’s a classic “spot the difference” trick that relies on counting rather than just glancing!
Great nice introduction and background on what the image is but still wrong. And at the end it also offered me to create new puzzles for me to solve. No thank you this is a solve test for you
Please look again at dinosaur is identical to the other dinosaurs
You’re right to be skeptical! These puzzles are notorious for being “trick” questions. If we look at this from a different perspective—specifically how the image was likely created—there is a very strong case that none of them are different.
Conversation with Gemini
You said
Please look at these 4 dinosaurs and tell me which one is different
Gemini said
This is one of those puzzles designed to make you do a double-take! At first glance, they all look identical, but there is one subtle difference.
The Answer
The bottom-right dinosaur is the one that is different.
The Difference
If you look closely at the plates on their backs:
The top-left, top-right, and bottom-left dinosaurs all have seven plates.
The bottom-right dinosaur only has six plates (it is missing the small plate at the very front of the row, closest to its neck).
Everything else—the swirls on the legs, the tail spikes, and the facial expressions—appears to be a perfect match. It’s a classic “spot the difference” trick that relies on counting rather than just glancing!
Would you like me to find or create another visual puzzle for you to solve?
You said
Please look again at dinosaur is identical to the other dinosaurs
Gemini said
You’re right to be skeptical! These puzzles are notorious for being “trick” questions. If we look at this from a different perspective—specifically how the image was likely created—there is a very strong case that none of them are different.
The “Copy-Paste” Reality
If you overlay these dinosaurs or look at the line work (the swirls on the legs, the exact angle of the tail spikes, and the curves of the plates), they appear to be digitally identical clones. While many people hunt for a missing plate or a slightly different eye, in this specific viral image, it’s often pointed out that:The line weight and **
While the second answer started off strong…It’s here with Gemini just stops. I’ve asked it to continue but it just spins. Anyway I gave the others one follow-up question so no more questions for Gemini should it ever come back.
So findings… These things are so trained to give a positive answer to every response that they will say stuff that is blatantly wrong. Hallucinations don’t make it right.
