Effect · Fun & Viral
Get Thinner — the same person, slimmer.
Get Thinner slims the face and body over the course of the clip. The sample opens on a young woman with long dark hair, a black scoop-neck t-shirt and a small gold pendant, shot from a low angle on a blurred city street. As her face grows slimmer, she turns to the camera and smiles.
The sample
What happens in the Get Thinner sample.
The sample opens from a low angle on a young woman with long dark hair, a black scoop-neck t-shirt and a thin gold necklace with a small pendant. Tall buildings and blurred car lights fill the background. She looks up and to the side with a calm face. She then turns toward the camera and smiles widely. Over the next frames her cheeks, jaw and arms look slimmer, and her waist narrows. By the end her t-shirt sits as a fitted crop top and she is smiling straight at the lens.
Her hair, necklace, black top and the city street stay throughout, and the camera angle levels out a little. The changes are to face shape, arms and waist, plus a shorter, tighter fit on the t-shirt near the end. Her features stay recognisable. The opening frame is a waist-up shot in plain everyday clothes, which is a sensible model for your own photo.
The recipe
Get Thinner, on paper.
Read from the effect catalog the app itself ships, so these are the settings your run will use.
| Spec | This effect |
|---|---|
| Engine | Vidu |
| Resolution | 720p |
| Clip length | 4s |
| Cost | 2 credits (~$0.80) |
| Source images | One photo |
| Aspect ratio | Follows your photo |
| Category | Fun & Viral |
| Text prompt | Built in (shown below) |
The prompt
The exact prompt behind it.
King AI sends this text with your photo. You do not type it; it is shown so you can see what the effect asks for.
The character's figure subtly becomes more slender over time: the facial contours appear more defined, the waist gently narrows, and the limbs take on longer, more graceful lines — creating a naturally evolving sense of lightness and slimness. # requirement 1.Accurately determine the character's gender and appearance based on the image. 2.motion level:large ultra HD 8K realistic, smooth motion, realistic physics, highly detailed environment
Your photo
Photos that suit it.
One-tap effects have one input. The photo you pick is your creative control.
Waist-up framing
The sample shows the woman from the waist up, so the face and upper body are both in view. A similar crop keeps both visible.
Plain everyday top
The sample uses a simple black t-shirt that changes fit near the end. A plain top in your photo is close to that starting point.
One person, face visible
A single person fills the sample's frame and ends looking into the lens, so a solo photo with your face visible matches it.
How it works
Running Get Thinner in four steps.
Pick your photo
The tips above come from what the sample shows. A clear, well-lit subject is the safe start.
Open Fun & Viral and tap Get Thinner
In the King AI app on iPhone, iPad or Mac, or in the web studio. Opening the effect does not spend credits.
Choose the length
4s. Cost: 2 credits (~$0.80).
Generate, then try another photo
The photo changes the result more than a second run of the same photo does.
Keep exploring
More Fun & Viral effects.
Picking the Mini Self
A mini pet figure sits by its own box as a hand reaches in.
ExplorePet to Human
A pet morphs into a person with its fur colour and outfit.
ExploreMicrowave
Your subject turns slowly on the spot, like food in a microwave.
ExploreEvery effect, by category
All the effect pages on one list, grouped the way the app groups them.
ExploreFAQ
Get Thinner, answered.
What does the Get Thinner effect do?
A woman in a black t-shirt on a city street turns to smile at the camera as her face, arms and waist gradually slim down across the clip.
Does Get Thinner change my clothes?
Mostly no, going by the sample. The woman keeps her black t-shirt, gold necklace, long dark hair and the city street behind her. Near the end the t-shirt sits shorter and tighter, like a fitted crop top, as her waist narrows. Her face and arms also look slimmer. The sample clip has sound, and the effect uses one photo.
How much does Get Thinner cost?
2 credits per run (~$0.80). New verified accounts receive 3 welcome credits once. The welcome bonus covers one supported first run costing 2 credits.
How long is a Get Thinner video?
4s at 720p. It follows the shape of your photo. Nothing you export is watermarked, on any plan.
Do I need to write a prompt?
No. King AI sends the built-in prompt shown on this page together with your photo.
Get started
Try Get Thinner.
New verified accounts receive 3 welcome credits once. The welcome bonus covers one supported first run costing 2 credits. Nothing you export is watermarked.