Replace an object in a video with your product
Upload a real video and a photo of your product. The AI puts it in a hand, on the desk or in place of another object, and keeps the people, motion, camera, light and sound. 2 credits a video.
Last updated
Before and after: real edits
Three edits from our tests on 9 November 2026. Each loop plays the original, wipes to the edit and back.
How it works
- Upload a real video: MP4, MOV or WebM, up to 60 MB. The first 10 seconds are edited, so start it at the moment that matters.
- Add up to 5 photos of your product and say what changes: in her hand instead of the cup, on the desk in front of him, in place of another can. Say what happens to the things around it too.
- Get the edited video in Create, with the video's own sound put back on it. 2 credits; if the job fails, the credits come back.
Price
- Edit video: 2 credits a video
- The first 10 seconds of your video, vertical or horizontal
- 18 free credits to start, no card
What stays
- The people, their faces and how they move
- The camera, the timing and the light
- The video's own sound: the edit makes its own audio, so CartViral puts your original soundtrack back, and a voice stays in sync with the lips
- Everything you did not name
What changes
- The object you name becomes your product from the photos
- Or your product is added where you say: in a hand, on a desk
- Anything you ask to remove around it, like the earbuds once the case is swapped
Tips for a clean edit
- Say where and what: "Replace the earbuds case in his hand with the product from the photo and remove the earbuds."
- Several photos? Call them photo1.jpg, photo2.jpg in the order you add them.
- Clear product photos work best: the whole product, a plain background, the label readable.
- Pick a video where the object is easy to see and stays in the frame during the first 10 seconds.
Good to know
- Only the first 10 seconds are used: a longer video is cut to its first 10 s.
- It changes what you name. If the old object leaves something behind, like earbuds in his ears, say what to do with it.
- Results vary from video to video. If an edit misses, say the change in other words and run it again; a job that fails refunds its credits.
- Edit only videos you have the rights to, and turn on the AI label where a platform asks for one.
For AI agents: MCP and REST
An agent calls the MCP tool edit_video with the video, the prompt and up to 5 product photos, then polls list_creations for the result. The REST API has the same at POST /api/v1/create/edit-video. The same credits as in the app.
Setup: connect CartViral to Claude, ChatGPT or Cursor · the REST API
Questions
How do I replace an object in a video with AI?
Upload the video to Edit video in CartViral Create, add a photo of the new object or your product and write what changes, for example: replace the cup in her hand with the product from the photo. The first 10 seconds are edited and everything you did not name stays.
Can I put my product in someone's hand in a video?
Yes. That is the main use: the person keeps their face, moves and voice, and holds your product instead of what they held. The first demo on this page is exactly that.
Does the edited video keep the original sound?
Yes. The edit model makes its own audio, so CartViral puts the original soundtrack back on the edited picture, or none if the video had none. The timing stays, so a voice stays in sync with the lips.
How long can the video be?
You can upload a file of up to 60 MB, but only the first 10 seconds are edited; a longer video is cut to its first 10 seconds.
How much does it cost?
2 credits a video, about $0.41 on Starter billed yearly. A new account gets 18 free credits with no card, enough for 9 edits. A job that fails refunds its credits.
Which AI model edits the video?
Google's Gemini Omni Flash video edit, run on CartViral's engine.
Can an AI agent edit videos for me?
Yes. Through the CartViral MCP server an agent calls edit_video with the video, the prompt and up to 5 product photos; the REST API has the same at POST /api/v1/create/edit-video. Both use your account's credits.
Edit your first video
18 free credits, no card: enough for 9 edits.