Video model by Google
VEO 3.1 Fast HD API
model: veo-3.1-fast-hd
Call VEO 3.1 Fast HD with your KeelRouter API key, the same key you use for every other model. From $0.33 per clip, paid per call from a prepaid balance. Failed calls are free.
Pricing
| Option | Price |
|---|---|
| per video | $0.33 per clip |
Call it
Async: POST /v1/video/generations returns a taskId; poll the same path with ?task_id= or pass a callback_url.
curl https://api.keelrouter.com/v1/video/generations \
-H "Authorization: Bearer $KEELROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "veo-3.1-fast-hd",
"prompt": "A paper boat drifting down a rainy street, slow camera follow"
}'Parameters
| Name | Type | Notes |
|---|---|---|
| model | string | Required. veo-3.1-fast-hd |
| prompt | string | Required. |
| aspect_ratio | string | One of 16:9, 9:16. Default 16:9. |
| images | array | Range …–2. |
| callback_url | string | Optional https URL; we POST the result when the task ends |
FAQ
- How much does the VEO 3.1 Fast HD API cost on KeelRouter?
- From $0.33 per clip. You pay per call from a prepaid USD balance; failed calls are not charged.
- How do I call VEO 3.1 Fast HD?
- POST to /v1/video/generations with model "veo-3.1-fast-hd". You get a taskId back; poll the same endpoint with ?task_id= or pass a callback_url.
- Is this the official VEO 3.1 Fast HD API?
- No. KeelRouter is an independent API gateway. Requests run on VEO 3.1 Fast HD through our upstream providers, and the video model keeps its own safety filters.
- How long are results kept?
- Result files are kept for 30 days, then deleted. Download what you want to keep.
More from Google
KeelRouter is an independent service and is not affiliated with Google. VEO 3.1 Fast HD is a trademark of its owner, used here only to name the model a request runs on.