Google Veo 3.1 Fast — 720p video with native audio (dialogue, ambient, lip-sync), including spoken Vietnamese. 4, 6 or 8s. T2V or I2V via image_url.
Modalities
Text → Audio
Price
$0.135 / sec
Context
0K
Pricing
Per second of generated video. Failed jobs are refunded in full.
$0.135 / secQuick start
Up and running in under two minutes.
- 1
Create an API key
Sign up and grab a key from the dashboard. Veo 3.1 Fast needs a top-up — the signup credit covers the free tier.
Get API key → - 2
Make your first request
Submit a generation job and poll until it succeeds.
curl https://kymaapi.com/v1/videos/generations \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "veo-3.1-fast", "prompt": "A wave breaking on a rocky shore at golden hour, cinematic", "duration": 5 }' # Poll: GET /v1/jobs/{id} until status="succeeded"
FAQ
Common questions about this model.
How much does Veo 3.1 Fast cost?
How do I use Veo 3.1 Fast?
Needs a top-up — the signup credit covers the free tier.Create account →
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