Make a video longer
Flux 3 Extend Video
FLUX 3 is Black Forest Labs' frontier video model. This endpoint continues an existing clip beyond its final frame, generating additional footage that stays consistent with the original motion and scene.
Opens the video studio with Flux 3 Extend Video ready to use. You can look around as a guest. Running it takes the Pro plan or higher.
What Flux 3 Extend Video makes, what it needs and what you get
What it makes
Make a video longer
Continues a clip past its last frame.
What you need
- What happens next
- The video to continue
What you get
A longer clip
- resolutions up to 1080p
- lengths from 5 to 20 s
- 7 aspect ratios
About Flux 3 Extend Video
Flux 3 Extend Video continues a clip past its last frame. It is made by Black Forest Labs.
To use it, you provide what happens next and the video to continue. You get a longer clip. Options include resolutions up to 1080p, lengths from 5 to 20 s and 7 aspect ratios.
A 5 s result costs about 20,500 credits. Longer or shorter results cost in proportion, about 4,100 credits per second. It is included from the Pro plan and up. You run it in the video studio, in your browser.
Best for
Typical uses for this kind of model.
- Extending a short AI clip
- Adding a few more seconds
- Continuing a scene
How to use Flux 3 Extend Video
- 1
Add the video to continue
Upload your files, or pick them from your library, then write a line about what you want.
- 2
Check the settings
Pick a length you want. The cost updates as you choose, and is shown before you generate.
- 3
Generate your video
A longer clip. Your result appears in the studio, ready to download.
Other models for this job
Same job: make a video longer. Compare before you choose.
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