To body swap in a video with AI, save the clip you want to star in, upload it with one clear photo of yourself, and let a video model replace the lead person while it keeps the original moves, camera and setting. On videosi that means a free shot-by-shot breakdown first, then one render of about 5 minutes that costs from 5 credits per 12 seconds. It is a natural thing to try, since short clips are where people already spend their time: a Clutch survey published in November 2025 found that 95% of consumers watch short-form video regularly and 71% watch it daily.
Key takeaways
- An AI body swap replaces the whole person in a clip, body, outfit and face, with you, while the scene, timing and camera stay the same. A face swap only changes the face.
- You need a 2 to 60 second MP4, MOV or WEBM clip (up to 50 MB) and one sharp, front-facing photo of yourself.
- On videosi the breakdown is free and shows every step and its price before anything is charged. Renders are paid, with no free generations.
- Body swap is only offered when the plan can follow the original's moves and camera. Otherwise you get Full remake, which redraws the scene.
- Swap only yourself or a friend who agreed, and turn on the platform's AI label when you post.
In this guide
- What an AI body swap actually does
- What you need before you start
- How to body swap in a video, step by step
- How to pick a clip that swaps well
- Fixing common problems
- Other ways to do it
- Safety, consent and labels
- Swap yourself into a video on videosi
- Continue reading
- Questions
What does an AI body swap actually do?
An AI body swap replaces the person leading a video with you. The model reads the clip for motion, camera movement, lighting and timing, then renders a new video in which you perform the same moves in the same place. Your build, hair and outfit come from your photo, so it reads as you in the role, not your face pasted onto someone else.
A face swap only replaces the face and keeps the original body, clothes and hair. It often looks wrong when builds differ, and it is the technique most tied to misleading deepfakes. videosi does not offer face-only swaps. It does body swap, also called character swap.
The research is recent. Alibaba's Tongyi Lab frames it in its Wan-Animate paper (September 2025) as two jobs, animating a still character with a video's motion and replacing the character inside a video, with a relighting step so the new person matches the scene's light.
What this means for you: expect your whole look in the clip, rendered fresh, not an edit of the old pixels.
What do you need before you start?
- The clip: an MP4, MOV or WEBM file of 2 to 60 seconds and up to 50 MB, saved from TikTok, Reels or Shorts or filmed yourself. Trim longer clips on your phone first.
- The photo: one photo of yourself, or two for a two-person video, as JPG, PNG, WEBP or HEIC up to 10 MB.
- An account: a free login to start. The breakdown is free; the render uses credits, and there is no free trial.
The photo matters most. Use a recent, sharp, unfiltered, front-facing picture in even light, with your face large and as much of your body showing as the clip needs: for a dance, a full-body shot with hands and feet in frame. Our guide to the best photo for AI video effects covers the common photo failures and fixes.
What this means for you: two minutes spent choosing the clip and the photo saves credits later.
How do you body swap in a video on videosi, step by step?
This is the flow in the AI body swap box on the home page.
- Save the clip. Download the TikTok, Reel or Short with the platform's save option where the creator allows it, or use your own footage. A file without captions or stickers burned in is easiest to read.
- Upload it. Drop it on "1. Drop the viral video". It plays in the box with its length shown.
- Add your photo. Under "2. Who stars in it", tap "+ Add photo". Photos are saved to your account for next time. Pick two for a two-person video.
- Get the free breakdown. Press "Break it down · free". Your studio opens and the director reads the clip, usually in under a minute, then shows a shot-by-shot plan on the original's timeline. You get up to 20 breakdowns a day.
- Choose Body swap or Full remake. Under "What changes", Body swap keeps the same cast, street, signs and camera, with you as the lead. Full remake keeps the moves and timing but redraws the people and place from a new script starring you. If only Full remake appears, the plan could not follow the original closely enough.
- Pick a model and resolution. The bill under "What runs, and what it costs" updates with each choice.
- Choose the sound. Original sound puts your clip's audio back under the result in sync. The other options are Model sound, Voice-over and Silent. A commercial song may be muted or claimed by the platform.
- Render. Press Generate. A take is about 5 minutes on Seedance and about 20 minutes on Wan 3.0. You can close the page.
- Download. Compare "Side by side with the original", then download the MP4, in the original's 9:16, 1:1 or 16:9 frame, with no watermark.
- Post with an AI label switched on (see the safety section).
What it costs
Credits per 12 seconds of video; other lengths pay their share by the second.
| Model | 480p | 720p | 1080p |
|---|---|---|---|
| Seedance 2.0 Mini (Standard) | 5 | 10 | Not offered |
| Seedance 2.0 Fast (Fast) | 8 | 17 | Not offered |
| Seedance 2.0 (Pro) | 10 | 20 | 50 |
| Seedance 2.5 (Ultra) | 17 | 37 | 93 |
| Wan 3.0 | 10 | 20 | 40 |
Say Maya, who runs a small dance account, saves a 12-second dance clip and uploads a full-body photo. Her plan offers Body swap, so she picks it with Standard at 720p and the original sound. The bill reads 10 credits, and about five minutes later she downloads the result and posts it with the AI label on.
What this means for you: nothing is charged until you press Generate, so you can read the plan and price and walk away.
How do you pick a clip that swaps well?
- One clear lead in the center of the frame, mostly facing the camera. For a duo, add two photos.
- A steady camera. Locked-off or slow moves beat fast handheld whips and many cuts. Dances, transitions and skits swap best.
- Visible body. If hands and feet leave the frame, the model has to guess.
- No famous people, brands or logos. The models' safety checks often turn these down, and videosi does not accept public figures anyway.
- Short. Up to 15 seconds renders as one take, fastest and cheapest.
To study how a clip is shot before you commit, the free video to prompt tool reads its keyframes without credits.
What this means for you: a short, steady clip with one obvious lead is the biggest step toward a clean swap.
Why did my body swap go wrong, and how do I fix it?
It does not look like me
Likeness is never guaranteed, and the photo is the usual cause: small, blurry, filtered or side-on faces, sunglasses and hats. Use a sharper, front-facing photo in daylight.
Say Priya swaps herself into a 24-second clip using a photo from a dim restaurant, in sunglasses. Her render on Standard at 720p costs 20 credits and looks more like a cousin than her. She retakes the photo by a window, face to camera, no glasses, and the second render keeps her features far better. A 30-second photo check would have saved the first 20 credits.
The render was blocked
The models run their own safety checks and turn down some clips, often ones showing a well-known person, a brand or a logo. A blocked render is not charged; the credits return automatically, and the studio offers a retry on Wan 3.0, which runs a different check. Often a different clip is the better fix.
Say Leo picks a 12-second street skit with a big branded shop sign behind him. The Seedance render is turned down and his 10 credits come back. He finds another creator's take on the same skit filmed on a plain sidewalk, and it renders normally.
Body swap is not offered
Body swap appears only when the plan can follow the original's moves and camera, and the plan says when it cannot, usually because of fast cuts or shake. Choose Full remake or a steadier clip of the same trend.
Hands and limbs look odd
Fingers, props and fast spins are hard for every video model. Use a photo that shows your hands and a clip where they stay in frame.
What this means for you: change one thing at a time, photo first, then clip, then model.
What are the other ways to body swap a video?
DIY with Wan 2.2 Animate in ComfyUI
Wan 2.2 Animate is an open model from Alibaba's Wan team, with 14B weights on Hugging Face. The official ComfyUI workflow calls its replacement mode Mix: it extracts pose and face controls from your clip, masks the person you are replacing, and suggests a small size for a first run. It is free if you own a strong GPU and gives you full control. The cost is setup time: a high-memory graphics card or rented cloud machine, models and custom nodes to install, long clips chained in pieces, and settings tuned by trial and error.
Other web tools
Several apps offer character replacement; Viggle's Mix feature, for example, puts the character from your image into a video while keeping the motion. They differ in watermarks, free tiers and upload checks, so see their pricing pages (checked November 2026). Our roundup of the best AI body swap tools compares several, videosi included.
What this means for you: run Wan 2.2 Animate yourself if you want control and have the hardware; use a web tool for a finished clip in minutes.
Is it safe and legal to body swap a video?
It can be, if you use only yourself or a friend who agreed, leave out famous people and anything sexual, and label the result. videosi requires users to be 18 or older, bans celebrities, public figures and sexual content, deletes photos and results within 30 days, and answers reports within 48 hours. See the safety page.
- TikTok requires a label on realistic AI content and bans the likeness of private adults used without permission, per its AI-generated content help page.
- YouTube asks you to use the altered content setting in YouTube Studio for realistic synthetic video, and says disclosure does not limit reach, per its disclosure help article.
- Instagram and Facebook show an "AI info" label when you disclose AI or Meta detects industry-standard signals, as set out in Meta's labeling approach.
The original clip belongs to its creator, so credit them and never pass the result off as real footage.
What this means for you: a labeled, consensual swap of yourself into a trend is normal use; anything meant to fool people is not.
How do you swap yourself into a video on videosi?
Open the AI body swap box, drop your clip, add your photo and press "Break it down · free". You see the plan, the Body swap or Full remake choice and the exact price before anything is charged. Packs start at $6.90 for 10 credits and plans at $29.90 a month for 100; credits never expire. Purchases are not refunded, but a failed or blocked render returns its credits. See pricing. videosi runs in the browser and is not affiliated with TikTok, Instagram or YouTube.
Continue reading
- The best AI body swap tools, compared.
- Can you really swap bodies with AI?
- How to make an AI cameo video of yourself.
- Which AI model to use for viral trend videos.
Questions
Is there a free AI body swap on videosi?
No. The breakdown on videosi is free, up to 20 a day, and shows the full price first, but every render uses credits. There are no free generations and no free trial. The cheapest body swap is 5 credits per 12 seconds, and a blocked or failed render is refunded automatically.
How long can the video be?
videosi accepts clips of 2 to 60 seconds, up to 50 MB, in MP4, MOV or WEBM. Longer clips are rendered in takes and joined into one file. Each take is about 5 minutes on the Seedance models and about 20 minutes on Wan 3.0, and you can close the page meanwhile.
Can I swap two people in one video?
Yes, with two photos. On videosi you add a photo for each person and pick both under "Who stars in it" before the breakdown. Both must be you and someone who agreed. Clips where the two leads stay separate and in frame give the cleanest result.
Does videosi do face swaps?
No. videosi only offers body swap, also called character swap, which replaces the whole person, including body, hair and outfit, while keeping the original moves and camera. It does not offer face-only swaps or accept photos of celebrities or public figures.
Why was Body swap not offered for my clip?
Body swap appears only when videosi's plan can follow the original's moves and camera, and the plan says when it cannot. Fast cuts and shaky handheld footage are common reasons. Choose Full remake, which keeps the moves and timing but redraws the scene, or try a steadier clip.
