Veo 3.1 Fast
Rapid generation with visual consistency
Try it
Leave empty for random
You can fill this in now — signing in happens when you run it, and your inputs come with you.
At a glance
- Developer
- Can do
- Text to video, Image to video, Video extend, First & last frame to video, Reference to video
- Credits per run
- 10 credits
- Typical time
- ~120s
- Added
- 2026-08-11
Parameters
What the model takes. The form above is generated from exactly this list, and the API accepts the same field names.
| Parameter | Type | Default | Range / options |
|---|---|---|---|
video_urlrequiredVideo to extend | Video upload | — | — |
image_urlrequiredReference image | Image upload | — | — |
promptPrompt | Long text | — | — |
aspect_ratioAspect ratio | Choice | 16:9 | 16:9 · 9:16 · Auto |
resolutionResolution | Choice | 720p | 720p · 1080p · 4k |
durationDuration | Choice | 8s | 4s · 6s · 8s |
negative_promptNegative prompt | Long text | — | — |
seedSeed | Number | — | — |
generate_audioGenerate audio | On / off | Yes | — |
auto_fixAuto fixPrompt | On / off | Yes | — |
Use it from the API
The same run, as a request. Send your API key as a bearer token; poll the returned request_uid until it is done.
curl -X POST https://api.wisaven.com/v1/ai/async/tasks \
-H "Authorization: Bearer $WISAVEN_API_KEY" \
-H "X-App-Id: wisaven" -H "Content-Type: application/json" \
-d '{
"model": "veo-3-1-fast",
"task": "text-to-video",
"input": {
"video_url": "https://…",
"image_url": "https://…",
"prompt": "your prompt here",
"aspect_ratio": "16:9"
}
}'Questions
What can Veo 3.1 Fast do?
Text to video, Image to video, Video extend, First & last frame to video, Reference to video. Fill in the parameters on this page to try it.
How many credits does Veo 3.1 Fast cost?
About 10 credits per run, charged at the platform's live price when you run it. One credit balance covers every workspace.
How long does it take?
Around 120 seconds; heavier settings or a queue take longer, and the page shows progress.
Do I need an account, and who owns the output?
Browsing and filling in the form need no account; running it does (new accounts start with free credits). What you generate is yours, personally or commercially, subject to the terms.
Other models like this
Where this model is used: Video·All models