Quick answer
Give Gemini or ChatGPT a photo of your pet and the portrait prompt below for a still in costume; swap the costume line for a hot dog, a ghost, bat wings or a witch hat. For a moving version, the video prompt goes into an image-to-video tool. Pet Costume AI makes the clip with no prompt.
An AI pet costume is mostly a picture search: people want their own cat or dog in an outfit they’d never sit still for. The risk in every tool is the same: it dresses a generic animal instead of yours. Each prompt here spends a line on keeping your pet’s face, markings and size, and keeps the costume off the face.
These are written for general tools; the Reelfie template runs its own prompt.
The portrait prompt
Use the pet in this photo, same breed, face, markings and size. Dress them in a soft, roomy orange pumpkin costume with a small green stem hat sitting behind the ears; the face stays uncovered. They sit on a porch step at dusk between two glowing jack-o’-lanterns, looking at the camera. Warm porch light, realistic pet photography, shallow depth of field. Vertical 4:5.
“Same breed, face, markings and size” goes first because the costume is the easy part. A model that hears only “dog in a pumpkin suit” returns a stock puppy.
Costume lines to swap in
Replace the sentence that starts “Dress them in” with one of these.
Hot dog
The bun costume dog owners love.
Dress them in a hot dog bun costume with a line of mustard along the back
Little ghost
A sheet with eye holes, ears showing.
Dress them in a tiny white ghost sheet with two eye holes, ears poking through
Bat wings
Small and simple, made for cats.
Give them small black felt bat wings, sitting on a windowsill under a full moon
Witch
Hat and cape.
Dress them in a tiny pointed witch hat and a purple cape, next to a small cauldron
The anime version
Redraw the pet in this photo as a modern anime character, keeping its breed, coat colors and markings. It wears a small Halloween costume of a pumpkin cape and a witch hat, in a moonlit street with paper lanterns. Clean line art, soft cel shading, bright eyes. Original character, no existing franchise.
The video prompt
Vertical 9:16 video, 8 seconds. The pet in the photo sits by a front door decorated for Halloween, carved jack-o’-lanterns glowing on the steps. They wear a soft, roomy orange pumpkin suit with a small green stem hat. They look around, tilt their head at the camera, then wag or wiggle happily. Keep the pet’s face, markings and size exactly as in the photo. Warm porch light, gentle handheld camera, no text.
- “The pet in the photo”: say pet, not person, or some tools add a human beside them.
- “Soft, roomy”: a tight suit makes the animal look stiff and the motion turns robotic.
- “Tilt their head at the camera”: the tilt is the moment people replay. Name it or it won’t happen.
- “Wag or wiggle”: lets a cat finish with a tail flick instead of a dog’s wag.
- “Warm porch light”: makes the orange of the suit glow against the dusk.
Where to run them
The portrait and anime prompts are for chat apps that edit images. The video prompt needs an image-to-video tool, and expect a few runs before the tilt lands without the face changing.
Pet Costume AI skips the prompt: it has the same four costumes as buttons (pumpkin, bat, ghost, witch) and the front-door scene built in.
- 1Pick the costume and add one photo of your pet.
- 2Check the price, 80 credits, and press make.
- 3Save the MP4 from Assets; a failed run refunds itself.
Common problems
It doesn’t look like my pet
Use a photo with the face and ears clear, and keep “same breed, same markings” in the first sentence.
The hat covers the eyes
Say where it sits: “the hat sits behind the ears; the face is uncovered”.
A person appears in the picture
Remove words like “trick-or-treater” or “owner”, and start with “the pet in this photo”.
FAQ
What is a good AI prompt for a pet Halloween costume?
Keep your pet’s breed, face and markings, name one costume in plain colors, say the face stays uncovered, and set a scene such as a porch at dusk. The full prompt is above.
Can I make my dog an anime character in costume?
Yes, with the anime prompt in a chat app, or for free with Reelfie’s Anime Style trend, which takes a pet photo and is free once for new accounts.
Which costumes come out best?
Ones with a clear shape and color: a pumpkin, a hot dog bun, bat wings. Busy costumes with lots of small parts tend to melt into the fur.
Does Reelfie use these prompts?
No. The template’s own prompt is set for its model. On Reelfie you pick a costume and skip the prompt.
Make your first one
Pet Costume AI: Your pet in a Halloween costume.
Try Pet Costume AIYour photos are deleted 7 days after upload and never used to train AI.
