# AI Video Extender

> Make a video you own longer from its last frame. Describe what happens next, choose the new length, keep the original first, then download after you confirm.

- [Canonical AI Video Extender page](https://mixvio.ai/tools/ai-video-extender)

## Tool summary

- **Media:** video
- **Input:** Owned MP4, MOV, or WebM video
- **Output:** Private MP4 with the original video first
- **Credits:** Quoted for the new segment only
- **Limit:** You choose how many times to continue

## How to use

1. **Upload your video:** Start from an MP4, MOV, or WebM you own, or choose Extend video on a finished MixVio video.
2. **Choose how long to add and what happens next:** Describe the next moment and choose how long to add. The new part is added after your video. A source shorter than 4 seconds uses a 4-second segment.
3. **Download the extended video:** When the quote is on Extend Video, press it and download the private MP4. Each piece keeps its soundtrack, with a short fade where the pieces meet.

## Common uses

- Continue a social shot
- Add the next product beat
- Carry a scene past its ending

## FAQ

### What is AI Video Extender?

AI Video Extender adds a new segment after a video you already own. The new segment starts from the last frame, and the download plays your original video first.

### How do I extend a video?

Upload a video you own, or choose Extend video on a finished MixVio video. Describe what happens next, choose the new length, confirm the quote, and download the private MP4.

### What video can I upload?

MP4, MOV, or WebM you have the rights to use, up to 200 MB, the same as Video to Video. The downloaded file must also be 200 MB or smaller. Credits return if the join cannot finish.

### How long can the new segment be?

You choose how long to add from the lengths available for that video. A source shorter than 4 seconds is raised to a 4-second new segment. The control stops at the longest length that video can use.

### Does the extended video include sound?

Yes, when a piece has sound. The download keeps that soundtrack in order. A piece without sound stays silent for its stretch. Picture and sound fade together for about a fifth of a second where two pieces meet.

### Can I extend the same video more than once?

Yes. You can keep extending the result. The next segment starts from the last frame of the newest piece. Earlier video stays saved and is not uploaded again. Extending the same video again tries that segment once more. Continue from the new result adds the next segment.

### How many credits does AI Video Extender use?

You pay for the new segment only. An uploaded 5-second segment is 8 credits. The button shows that quote when the video is selected, before anything is charged. A failed run costs no credits.

### How is this different from Video to Video?

Video to Video restyles a video you already have. AI Video Extender keeps that video first and adds what happens next.

### How is this different from Image to Video?

Image to Video starts from an image. AI Video Extender starts from a video and continues after its last frame.

### Can I use the download commercially?

Paid-plan outputs may be used commercially, subject to the Terms of Service. You must have rights to the video you upload. Free-plan outputs are for evaluation and are not for commercial publishing.