Flux 3 Edit Video re-renders an existing video using a text instruction, with the source clip guiding the movement, timing and framing.
Upload your source video and describe the change, such as a different wall finish, lighting condition or season. Specify what should change and what should stay the same.
Source video requirements: MP4, under 50MB, and under 15 seconds. Output is 720p.
Set the length slider to match the source video duration. This value is used to calculate the price; it does not trim or extend the clip.
Example: an interior finish change
What changed: The cream plaster wall finish is changed to warm, muted terracotta. The prompt targets the rear wall and asks the model to preserve the furniture, room geometry, daylight and original camera movement.
Exact edit prompt: Change the cream plaster rear wall to warm muted terracotta plaster. Preserve the furniture, room geometry, original camera motion and daylight. Keep the rest of the video unchanged.