Veo 3.1 Lite

Google Veo 3.1 Lite — cost-efficient video generation with always-on audio, per-second pricing, and image-to-video support.

POST /v2/videos/generate — model: "veo-3.1-lite"

Google Veo 3.1 Lite is the most cost-efficient model in the Veo 3.1 family, built for high-volume video generation. Every clip ships with natively synchronized audio, and it supports text-to-video, image-to-video, and first/last-frame interpolation. Reference images and 4K output are not supported — use Veo 3.1 for those.

See Video Generation overview for common request fields, response format, and error codes.

Model-specific parameters

Parameter	Type	Default	Description
`veoParams.duration`	integer	`8`	Video duration in seconds: `4`, `6`, or `8`
`veoParams.resolution`	string	`"720p"`	Output resolution: `"720p"` or `"1080p"`. `1080p` requires `duration: 8`
`veoParams.aspect_ratio`	string	—	Aspect ratio in `"W:H"` format — `"16:9"` or `"9:16"`
`veoParams.image`	string	—	URL of an input image for image-to-video
`veoParams.last_frame`	string	—	URL of an image to use as the last frame (frame interpolation)
`veoParams.negative_prompt`	string	—	Things to avoid in the video (max 2,000 chars)
`veoParams.seed`	integer	—	Random seed for reproducibility

Audio is always generated and cannot be disabled.

Credit cost

Pricing is per second of generated video (credits = rate × duration), by resolution. Audio is included in the rate.

Variant	Credits / second
`720p`	9
`1080p`	14

An 8-second clip at 1080p therefore costs 14 × 8 = 112 credits.

Example result

Once the job is COMPLETED, the result object on GET /v2/jobs/:id looks like:

{
  "videoUrl": "https://cdn2.apiframe.ai/videos/b2c3d4e5-f6a7-8901-bcde-f23456789012.mp4"
}

See Result format for field details.

Code examples

curl -X POST https://api.apiframe.ai/v2/videos/generate \
  -H "X-API-Key: afk_your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "a cinematic drone shot of a lighthouse on a rocky cliff at sunset, waves crashing below",
    "model": "veo-3.1-lite",
    "veoParams": {
      "duration": 8,
      "resolution": "720p",
      "aspect_ratio": "16:9"
    }
  }'

import requests

response = requests.post(
    "https://api.apiframe.ai/v2/videos/generate",
    headers={
        "X-API-Key": "afk_your_api_key_here",
        "Content-Type": "application/json",
    },
    json={
        "prompt": "a cinematic drone shot of a lighthouse on a rocky cliff at sunset, waves crashing below",
        "model": "veo-3.1-lite",
        "veoParams": {
            "duration": 8,
            "resolution": "720p",
            "aspect_ratio": "16:9",
        },
    },
)
print(response.json())

const response = await fetch("https://api.apiframe.ai/v2/videos/generate", {
  method: "POST",
  headers: {
    "X-API-Key": "afk_your_api_key_here",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    prompt: "a cinematic drone shot of a lighthouse on a rocky cliff at sunset, waves crashing below",
    model: "veo-3.1-lite",
    veoParams: {
      duration: 8,
      resolution: "720p",
      aspect_ratio: "16:9",
    },
  }),
});
console.log(await response.json());

Image-to-video

Provide an image to animate a still. Add last_frame for smooth first-to-last-frame interpolation.

curl -X POST https://api.apiframe.ai/v2/videos/generate \
  -H "X-API-Key: afk_your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "gentle camera push-in with ambient sound",
    "model": "veo-3.1-lite",
    "veoParams": {
      "image": "https://example.com/scene.jpg",
      "duration": 6,
      "resolution": "720p"
    }
  }'

Try it

POST/v2/videos/generateTry it

API Key

Request Body (JSON)