veo_3_1-fl

Veo 3.1 image-to-video (first/last frame).

Modes

img→video (first/last frame)

Size

16:9 or 9:16, pixels from tier; e.g. 1280x720 / 720x1280

Seconds

fixed 8

Refs

required 1–2 (first + optional last)

Billing

per second × tier

Model notes

• Requires 1–2 reference images: the first is the start frame, the second (optional) the end frame.
• Duration fixed at 8 seconds; tier sets resolution and billing.

Request example

{
  "model": "veo_3_1-fl",
  "prompt": "smooth morph between the two frames",
  "tier": "1080p",
  "reference_images": ["https://.../first.png", "https://.../last.png"]
}