Veo 3.1

by Google

Google Veo 3.1 for native audio-video generation, extension, and upscaling with strong prompt adherence.

Get API Key Read the docs

Capabilities

Text to video
Extend video
Upscale
Native audio

Available models

Pass any of these IDs in the model field.

Model ID	Detail	Price
veo-3.1-text-to-video	8s · 1080p	$0.15 / second
veo-3.1-fast	8s · 720p	$0.06 / second
veo-3.1-extend-video	adds 7s	$1.05 / call

Pricing starts at

$0.150 / second

Pay only for what you use. Each response returns the exact amount settled against your balance — no subscriptions, no minimums.

Quickstart

Veo 3.1 · veo-3.1-text-to-video

cURL

curl -X POST https://capi.ai/api/v1/kling/text_to_video \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "veo-3.1-text-to-video",
    "prompt": "A paper kite flying above a quiet coastal town at sunrise",
    "duration_seconds": 5
  }'

Veo 3.1

Capabilities

Available models

More Video models

Kling

Seedance

Hailuo