AI Video Object Removal in 2026: What Works on Flixly

Most "AI object removal" tools promise one thing: draw around something, and it disappears from every frame. Flixly doesn't have that tool. What it does have is a set of video and image tools that each solve one version of the problem well: a person who walked into the shot, a messy background, a bad few seconds in the middle of a take, a cluttered thumbnail or a noisy recording. This guide matches each problem to the tool that handles it, with the real limits of each.

Which tool fits which problem

Replace the part of the clip that has the problem

If something unwanted crosses the frame for a few seconds (a passer-by, a car, a dropped prop), the cleanest fix is often to replace those seconds rather than erase the object from them.

Insert Video does exactly that. You upload a clip of 3 to 60 seconds, mark where the new scene starts and where your footage picks up again, and describe what should happen in between. MiniMax H3 Max Insert generates a 5 to 13 second scene that blends into the footage on both sides, at 480p or 768p. You can add up to 9 reference images of the characters, objects or places that should appear in it.

How to use it for removal:

1. Set the start point just before the unwanted object enters. It has to be at least about 1.6 seconds into the clip.
2. Set the resume point after it leaves, with at least 1 second of your footage left after it.
3. Describe the scene without the object: "The street stays empty, the camera keeps panning slowly to the right."

Because the inserted scene is newly generated, it works best when the moment you replace is simple: a static or slow shot, no dialogue, and no action that must match frame for frame.

Swap the people instead of erasing them

Sometimes the problem is who is in the shot: an extra who didn't sign a release, or a stand-in you want to replace with your real presenter. Recast Video replaces the people in a clip with the people in your photos and keeps the original motion, camera, cuts and sound.

Upload a video of 5 to 30 seconds, with no single shot longer than 15 seconds, and one photo per new person (up to 4). By default the photos replace the main people from left to right. You can also say who becomes whom in the prompt. Output is 768p or 1080p.

Recast swaps people; it doesn't delete them. To get someone out of the frame entirely, use Insert on the seconds where they appear.

Remove everything behind the subject

When the clutter is the whole background (a messy room, a busy street, a branded wall), remove the background instead of individual objects. Video Background Removal returns a clean cutout of your subject with no green screen needed. You can keep the original audio and pick a background color, then composite the subject onto a new scene, a product shot or a social template.

Clean up stills, thumbnails and key frames

For a single frame (a thumbnail, a poster or the first frame you'll animate), image editing is far more precise than anything on video. Open Image to Image, upload the frame and choose FLUX 3 Image. Ask for the change in plain words, such as "remove the boom mic at the top of the frame". Everything you didn't ask to change stays as it was. It outputs at 1K, 2K or 4K.

A cleaned frame is also a good starting point for a new clip: take it into the Video Generator as the first frame and animate it.

Remove unwanted sound

Unwanted noise is often the bigger problem than an unwanted object. Clean Audio removes background noise, hum and room echo from voice recordings up to 30 minutes long.

What Flixly doesn't do

• No mask-and-track eraser. You can't paint over an object once and have it removed from every frame of your original footage. For a boom mic that sits in the corner of a long take, a desktop editor with tracked inpainting is still the right tool.
• No editing of long footage in one pass. Insert works on clips up to 60 seconds and Recast on clips up to 30 seconds.
• Generated footage is generated. Inserted scenes are new video that matches the surrounding footage, not a pixel-exact restoration of what was behind the object.

Where to start

Pick the row in the table that matches your problem and run one short test. Every tool shows the credit cost before you generate, and the final charge for Insert and Recast uses your clip's exact length.