video-outpainting

Run `runcomfy run wan-ai/wan-2-7/edit-video` with your video URL and a prompt like "Extend the canvas to 16:9 horizontal by adding matching environment on the left and right sides." End the prompt with a preservation instruction to keep the central action intact.

Video outpainting expands the frame spatially, adding environment beyond the original borders or changing aspect ratio. Video extending adds more frames in time, making the clip longer. This Skill handles spatial outpainting only.

The CLI reaches Wan 2-7 edit-video, which handles most social and internal uses but shows quality variance at seams. For hero ad delivery, use the dedicated ComfyUI LTX 2-3 outpainting workflows in the RunComfy cloud GUI instead.

Wan 2-7 was not trained specifically for outpainting, so seam quality varies. Improve results by describing matching background style, lighting, and camera distance in the prompt, or switch to a dedicated ComfyUI outpainting workflow.

You can chain passes where each extends the canvas by roughly 30 percent, but quality degrades noticeably after two passes. Plan the target aspect ratio early to minimize the number of passes needed.