AI Video Extender
AI Video Extender
MP4 or MOV, 2–30 seconds, up to 200MB. Short edge 300–6000px. This is the clip to extend (@video1). Total duration with reference videos must be ≤30s. Output aspect ratio follows the source.
Forward continues after the last frame; backward invents what happened before.
Total length of the extended result (4–30 seconds). Must be longer than the source.
Up to 30 style or subject reference images. Mention them as @image1, @image2, …
Up to 9 extra clips for motion/camera reference. Each 2–30s; combined with the source video, total duration ≤30s.
Up to 10 clips (mp3/wav), each 2–30s, total ≤30s. Use for BGM, SFX, or voice reference.
When enabled, the extended video includes generated audio.
Describe what should happen in the extended portion. Direction is prepended automatically (Extend @video1 forward/backward).
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Upload a source video, choose direction and length, then click Extend Video