Make your cat or dog look fat with AI
- 1 photo
PetCostumeAI's fat pet effect turns one photo of your cat or dog into a funny still image: a much rounder version of your pet lounging on a sofa beside an empty food bowl, with its face and markings kept. You get 1 image from 1 photo in default, square or portrait framing, for 50 credits.
Your pet photo
0/1Your pet photo
Add one clear photo of a pet you are authorized to use.
50 credits
Two free image previews, no sign-in needed. Unlock this same image for 50 credits.
Failed generations release credits automatically.
Made with PetCostumeAIRelated effects
Before & after
One photo in. One look out.
Original photo · Dog 
With the look 
Original photo · Cat · AI 
With the look
How it works
How to use this effect
- 1
Choose a pet photo
Use one clear, well-lit photo where your pet's face is visible.
- 2
Create the fat pet photo
The effect applies a fixed recipe: a rounder body and cheeks, a sofa and an empty food bowl.
- 3
Save your result
Download the image from your library within seven days.
Photo tips
- 01Use one pet in the frame.
- 02A photo showing the whole body gives the effect more to work with.
The "AI fat cat" prank, as a photo
People search for AI fat cat photos and fat dog AI pranks: pictures that make a slim pet look as if it got fat overnight. This effect makes that picture from one photo of your own pet. It is a joke image, not a prediction of weight or health.
Try another photo
A different photo gives a new pose and room. How round your pet looks also varies from one result to the next.
Effect details
- Input
- 1 pet photo
- Output
- 1K image · default, square, or portrait
- Cost
- 50 credits
- Image effect
- This effect creates a still image and does not include audio.
Questions
Frequently asked questions
Yes. Upload a clear photo of one cat or one dog. This page shows one sample of each.
The recipe keeps the face, eye color, ears, fur colors and markings, and makes the belly, body and cheeks rounder. Results vary with the photo.
No. It is a joke image and does not show or predict your pet's real weight or health. Ask your vet about your pet's weight.
Each image costs 50 credits. Credits are a one-time purchase with no subscription.