MP4 or MOV, 4–30 seconds, up to 200MB. Short edge 300–6000px. This is the clip to edit (@video1). Total duration with reference videos must be ≤30s. Output matches source duration and aspect ratio.

Up to 30 reference images (optional). Mention them in the prompt as @image1, @image2, …

Up to 9 extra clips for motion/camera reference. Each 4–30s; 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.

State the edit intent clearly, e.g. "Edit the video: replace the product in @video1 with @image1". Use @video1 for the source, @video2+ for refs, @imageN / @audioN for other materials.