FLUX 3 video-extend continues an MP4 of up to 15 seconds from its last frame, returning only the newly generated 5 to 20 second segment with synchronized sound.
Workbench
These examples were written for this endpoint. Replace the prompt and sample media URLs with your own accessible inputs, then check the current quote and model availability before submitting.
- Output5s
dune-fingertip-sandstorm `video_url` is a five-second desert close-up: a woman in emerald satin, wind in her hair. The new segment picks up from its last frame in the same shot, with no cut: she holds the lens with a slow smile, then the dust thickens around her and the light fades to dark. The output holds only these five seconds (`duration_seconds` `5`), and `generate_audio` adds a sound track.
- 720p
- audio
- 5s
This example starts at $0.12 per output second. The Playground updates the estimate when you change the settings.
