WanVideoFree

Wan Video to Video

Wan video-to-video editing uses an existing 2–10 second MP4 or MOV plus an instruction to create a changed version. It is suited to restyling, localized scene changes, and preserving an existing camera path while altering the look. The current WanVideoFree integration uses the hosted Wan 2.7 edit-video endpoint.

Edit a video with Wan 2.7

Supported input contract

  • Input: public HTTPS MP4 or MOV, 2–10 seconds, up to 100 MB.
  • Output: 720p or 1080p.
  • Duration: match the source, or select 2–10 seconds and truncate from the start.
  • Audio: let the model decide or preserve original audio.
  • Current first-test tier: three seconds at 720p for 30 credits. The earlier five-second canary correctly failed because its real input was only 3.375 seconds; the public tier was reduced instead of hiding that mismatch.

Write an edit instruction, not a new screenplay

State the transformation first, then the invariants:

Transform the entire scene into a soft watercolor painting on textured paper. Preserve the subject, timing, camera movement, and composition. Keep the original audio.

Avoid asking for several incompatible transformations in one pass. If identity or product geometry must remain exact, name that constraint directly and review the result before commercial use.

Wan 2.7 image-to-video also accepts a short video URL to continue a clip. Use continuation when the scene should advance beyond the last frame. Use edit-video when the timing and camera path should stay recognizable while the visual content changes.

Safety and refunds

The service checks high-risk prompt categories and rejects private/internal URLs before provider spend. The provider safety checker remains enabled. Eligible credits are returned for a submit failure, provider failure, or server-settled timeout; a completed output that does not match personal taste is not automatically a failed task.

Source: Wan 2.7 edit-video API schema. Last checked August 12, 2026.

Frequently asked questions

Can Wan extend an existing video?

Yes, the Wan 2.7 image-to-video endpoint accepts a 2–10 second video for continuation. The edit-video endpoint is better when you want to restyle or alter the supplied clip rather than simply continue it.

Can it preserve the original audio?

The edit endpoint exposes an audio setting that can preserve the original audio. The result still needs review because generated visual timing or provider processing can vary.

Why must the input URL be public HTTPS?

The inference provider must be able to fetch the file. WanVideoFree rejects localhost, private-network, credential-bearing, and non-HTTPS URLs before any paid call to prevent server-side request abuse.