BunCho video tools
Continue a video from its last frame
Upload the video you want to extend and describe what happens next. The model continues from the last frame and the new part is joined to the end of your video — for a shot that is a little too short, or a bridge into the next scene.
Open the video tools Plans and pricing
Available on paid plans with an active subscription (not on the free plan or during the free trial). You see a credit estimate before anything is generated.
If you are not signed in, you sign in (or create an account) first and then land on the video tools.
What you put in, what you get
You provide
- The video to extend (up to 60 s; landscape 16:9 or vertical 9:16 works best; LTX-2.3 needs at least 3 s)
- What happens next (required, e.g. "the camera pulls back to show the city at night")
You get
An MP4 of your video with 7 seconds (Veo 3.1 Fast, Veo 3.1) or 5 seconds (LTX-2.3) added to the end.
Good for
- Make a short generated shot a little longer
- Create a bridge from the end of one shot into the next scene
- Add a few seconds to a short-form video
Models you can choose and their credits
Veo 3.1 Fast and Veo 3.1 add 7 seconds with sound; Veo 3.1 has higher quality and uses more credits. LTX-2.3 adds 5 seconds with fewer credits (the last 3 seconds of your video are also counted).
| Model | Length | Approx. credits | Difference |
|---|---|---|---|
| Veo 3.1 FastDefault | Adds 7 s | about 1,057 for 7 s | With sound |
| Veo 3.1 | Adds 7 s | about 2,818 for 7 s | With sound, higher quality, more credits |
| LTX-2.3 | Adds 5 s | about 805 for 5 s (the last 3 s of your video also count) | Fewer credits |
The estimate screen lists the credits for every model with the same input, so you can compare first and only generate when you agree.
How to extend a video with AI
Upload the video
Open Video tools > Extend a video and upload the video (up to 60 seconds).
Describe what happens next
Write what should happen in the continuation.
Pick a model and get an estimate
Choose a model, press Estimate and check the added length and credits.
Generate and download
Press the generate button and download your video with the continuation joined on.
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Learn moreExtend a video
Continue a video from its last frame and add the new part to the end.
3 models · from about 805 credits for 5 s (LTX-2.3)
Plans and credits
- Available on paid plans (Watering, Seed, Feast, Full Course, Team & Business) with an active subscription. Not available on the free plan or during a paid plan's free trial.
- The tools use your studio's monthly AI credits — the same balance you use for novels, manga and video.
- Before generating, you see a credit estimate for the model and length you picked. Nothing is generated until you agree.
- No credits are used if a job fails or if you cancel it before it starts.
Rights and AI disclosure
- Only use images, audio and video that you own or have permission to use. Real people's faces and voices may only be used with that person's permission.
- Do not use the tools to impersonate someone or to make a person appear to say something they did not say.
- The results are AI-generated. When you publish them, label them as AI-generated or AI-edited according to the rules of the platform you post on.
- Model names are listed because you can choose them in the product. Listing them does not imply any partnership with or endorsement by their makers.
FAQ
How many seconds can I add?
Each run adds 7 seconds with Veo 3.1 Fast or Veo 3.1, and 5 seconds with LTX-2.3. To go longer, extend the result again.
How long can the original video be?
Up to 60 seconds. LTX-2.3 needs a video of at least 3 seconds.
Can I extend videos made with other services?
Yes, as long as you have the rights to the video.
Does the extension have sound?
Veo 3.1 Fast and Veo 3.1 generate the continuation with sound.
How many credits does it use?
About 805 to add 5 seconds with LTX-2.3 and about 1,057 to add 7 seconds with Veo 3.1 Fast (as of October 30, 2026). The estimate shows the exact amount before you generate.
Related
Make it with the studio's video tools
Available on paid plans with an active subscription (not on the free plan or during the free trial). You see a credit estimate before anything is generated.