Veo 3.1 Fast

Text-to-Video • Google • Proxied

A faster version of Veo 3.1 optimized for lower latency while maintaining high-quality video and audio output.

Model Info
Terms and License	link ↗
More information	link ↗
Pricing	View pricing in the Cloudflare dashboard ↗

Usage

const response = await env.AI.run(
  'google/veo-3.1-fast',
  {
    prompt: 'A butterfly landing on a colorful flower in a garden',
    duration: '6s',
    aspect_ratio: '16:9',
    resolution: '720p',
    generate_audio: true,
  },
  {
    gateway: { id: 'default' },
  }
)
console.log(response)

Output
Raw response

{
  "state": "Completed",
  "result": {
    "video": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__veo-3.1-fast/quick-demo.mp4"
  },
  "gatewayMetadata": {
    "keySource": "Unified"
  }
}

Examples

Social Content — Quick vertical video for social media

const response = await env.AI.run(
  'google/veo-3.1-fast',
  {
    prompt:
      'Aesthetic morning routine: sun rays through curtains, coffee being poured',
    duration: '6s',
    aspect_ratio: '9:16',
    resolution: '720p',
    generate_audio: true,
  },
  {
    gateway: { id: 'default' },
  }
)
console.log(response)

Output
Raw response

{
  "state": "Completed",
  "result": {
    "video": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__veo-3.1-fast/social-content.mp4"
  },
  "gatewayMetadata": {
    "keySource": "Unified"
  }
}

Motion Graphics — Quick animated graphics

const response = await env.AI.run(
  'google/veo-3.1-fast',
  {
    prompt:
      'Glowing neon lines forming geometric patterns on a dark background',
    duration: '4s',
    aspect_ratio: '16:9',
    resolution: '720p',
    generate_audio: false,
  },
  {
    gateway: { id: 'default' },
  }
)
console.log(response)

Output
Raw response

{
  "state": "Completed",
  "result": {
    "video": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__veo-3.1-fast/motion-graphics.mp4"
  },
  "gatewayMetadata": {
    "keySource": "Unified"
  }
}

Ambient Scene — Relaxing background video

const response = await env.AI.run(
  'google/veo-3.1-fast',
  {
    prompt:
      'Rain falling on a window with a blurred city skyline in the background at night',
    duration: '8s',
    aspect_ratio: '16:9',
    resolution: '720p',
    generate_audio: true,
  },
  {
    gateway: { id: 'default' },
  }
)
console.log(response)

Output
Raw response

{
  "state": "Completed",
  "result": {
    "video": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__veo-3.1-fast/ambient-scene.mp4"
  },
  "gatewayMetadata": {
    "keySource": "Unified"
  }
}

prompt

stringrequiredText prompt describing the video to generate

image_input

stringBase64-encoded reference image for i2v

duration

stringrequireddefault: 6senum: 4s, 6s, 8sVideo duration

aspect_ratio

stringrequireddefault: 16:9enum: 16:9, 9:16, 1:1Video aspect ratio

resolution

stringrequireddefault: 720penum: 720p, 1080pVideo resolution

generate_audio

booleanrequireddefault: trueWhether to generate audio with the video

video

stringformat: uriURL to the generated video

API Schemas (Raw)

Input

Output