How to Face Swap a Video with AI on VdoBloom (Step by Step)

To face swap a video on VdoBloom, open AI character replacement, upload a clear photo of the person and a video of up to 30 seconds, pick a model and generate. The tool replaces the whole person in the clip, face and body, while keeping the original movement, camera and background. Only use photos of yourself or of people who have agreed.

Quick facts

• Tool: AI character replacement video. For a still photo, use the separate face swap image tool (10 credits).
• Models: P-Video Replace and Kling 3.0 Motion Control.
• Price per second of video: P-Video Replace at 2.4 / 4.8 credits (720p / 1080p); Kling 3.0 Motion Control at 9.1 / 12.1 credits (720p / 1080p).
• Limits: source video up to 30 seconds and 200 MB. Kling 3.0 Motion Control needs at least 3 seconds. You pay for the measured length of your clip.
• Billing: pay per use, no subscription, credits never expire.

Upload a photo and a video to start

Face swap or character replacement: what you actually get

Classic face swap apps paste a new face onto the old head, frame by frame. The hair, body, clothes and skin tone stay from the original video, which is why results often look like a mask.

VdoBloom's video tool works differently. The model studies the motion in your video (pose, gestures, head turns, lip movement) and redraws the person from your photo doing that motion. Hair, outfit and body come from the photo. The background and camera come from the video.

That means two things. The result looks more natural when the photo and the video person have a similar build and pose. And if you only want to change a face while keeping the original outfit, dress the person in the photo the way you want them to appear.

Which model to pick

Start with P-Video Replace at 720p to check the photo and video work together. If the match is right, run the final at 1080p, or switch to Kling 3.0 Motion Control for difficult movement such as spins and fast arm moves.

Choosing the photo

The photo decides how the new person looks in every frame. A few rules make a large difference:

• Use one person, facing the camera, with the face fully visible. No sunglasses, hands or hair across the face.
• Show more than the face. A waist-up or full-body photo gives the model the outfit and body to draw.
• Use soft, even light. Hard shadows on the face come back as odd patches in motion.
• Match the framing of the video. If the video is full body, use a full-body photo.
• Upload a sharp image. If yours is small or soft, run it through the image upscaler first.

Choosing the video

• One main person. With several people in the frame, the model may pick the wrong one.
• Steady, visible motion. The person should stay in frame and not be hidden behind objects for long.
• Trim first. You pay per second of the source clip, up to 30 seconds. Cut it to the part you need before uploading.
• Avoid heavy cuts. A single continuous shot works better than a fast-edited montage.
• Match the angle. If the person in the video is filmed from the side most of the time, a straight-on photo still works, but a clip where the face turns toward the camera at least once gives the model a better lock.
• Keep the light similar. A daylight photo dropped into a dark club clip can look pasted. Pick a photo with light close to the video's.

How to do it on VdoBloom

1. Open AI character replacement and sign in. New accounts get 10 credits on sign-up; most video runs need a top-up.
2. Upload the photo of the person who should appear in the video.
3. Upload the source video (up to 30 seconds and 200 MB).
4. Pick a model and resolution. The cost is shown before you generate and is based on your clip's length.
5. Generate. The finished clip appears in My Creations.
6. Check the result at full size. If hands or the face drift, try a clearer photo or Kling 3.0 Motion Control before anything else.

Run a 720p test swap

Consent and the rules that apply

Swapping someone into a video makes it look like they did something they did not do. Only use your own photo, or a photo of someone who has clearly agreed to this exact use. Do not use photos of public figures, of minors, or of anyone to embarrass, mislead or harass them. Sexual or intimate content of real people is not allowed.

VdoBloom checks uploaded photos for nudity, and the image face swap tool asks you to confirm you have consent before it runs. Many platforms also require you to label realistic AI-altered video when you post it. Our video copyright checklist covers labels, music and likeness before you upload.

Fixing common problems

• The face does not look like the photo: use a closer, sharper photo with the face straight on.
• Clothes flicker or change: the photo outfit is hidden or cropped. Use a waist-up or full-body shot.
• Hands melt during fast moves: switch to Kling 3.0 Motion Control, or pick a calmer section of the video. Our guide to fixing hands and faces in AI video has more fixes.
• Upload refused for length: trim the clip to 30 seconds or less.

A worked example: a 12-second dance clip

Say you have a 12-second dance video filmed on a phone and a full-body photo of yourself in the outfit you want. Here is how a careful run goes.

First, trim the video so it starts on the first move and ends on the last. Every extra second costs credits, and a clean start helps the model lock on to the dancer.

Second, run a test with P-Video Replace at 720p. Twelve seconds at 2.4 credits per second is about 29 credits. Watch it twice: once for the face, once for the hands and feet.

Third, decide. If the face and outfit hold and only the resolution is low, run P-Video Replace at 1080p (about 58 credits). If the spins and fast arm moves break, switch to Kling 3.0 Motion Control at 720p, about 109 credits, which handles hard motion better.

Last, add the music or original audio back in an editor and post. If the clip looks real, turn on the platform's AI label.

The same three-step routine works for a talking clip, a walk-in shot or a short sketch. Test cheap, check the weak spots, then spend on the final.

Swap a face in a photo for 10 credits

FAQ

Can I swap only the face and keep the original body?

The video tool redraws the whole person from your photo, so the photo sets the face, clothes and build. To keep a look close to the original, pick a photo with similar clothes and build.

How much does a 15-second face swap video cost?

36 credits with P-Video Replace at 720p, 72 credits at 1080p, or 136 credits with Kling 3.0 Motion Control at 720p.

Does the audio from my video stay?

Plan to add audio in an editor afterwards. If the person speaks, the model follows the mouth movement, but check lip sync on the result before you publish.

Can I face swap a photo instead of a video?

Yes. The face swap image tool takes two photos and costs 10 credits. It is available on the website.

Can I use a celebrity's face?

No. Use your own face or that of someone who has given permission.

Related reading: keeping AI video characters consistent and replacing a product in a video with AI.