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POST
Veo 3.1 Fast
veo3-1-fast is the 1080p Fast route for fixed 8-second video with synchronized native audio.
string
required
Set to veo3-1-fast.
string
required
Describe the shot and intended audio.
string
required
Set to "8".
string
default:"16:9"
Use 16:9 or 9:16.
string[]
Optionally send one start frame or a start and end frame.

Request with start and end frames

Follow the Video API workflow and include model=veo3-1-fast when polling and downloading.
With two images, the first URL is the start frame and the second is the end frame. Use Fast Reference when you need up to three general references.