> ## Documentation Index
> Fetch the complete documentation index at: https://docs.freemodel.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Seedance 2.0 I2V

> Seedance 2.0 I2V video API via FreeModel: image-to-video mode of Seedance 2.0 standard, billed from prepaid balance.

`seedance-2.0-i2v` is the image-to-video mode of Seedance 2.0 standard: one image is the first frame, two images are the first and last frames.

| Property | Value                                                                                              |
| -------- | -------------------------------------------------------------------------------------------------- |
| Model ID | `seedance-2.0-i2v`                                                                                 |
| Input    | prompt + images                                                                                    |
| Output   | 480p, 720p, 1080p, 4k video with native audio                                                      |
| Duration | 4 to 15 seconds                                                                                    |
| Price    | 480p: \$0.095 per second; 720p: \$0.19 per second; 1080p: \$0.48 per second; 4k: \$1.10 per second |

Confirm live rates on the [models page](https://freemodel.app/models/seedance-2).

<ParamField body="model" type="string" required>
  Set to `seedance-2.0-i2v`.
</ParamField>

<ParamField body="prompt" type="string" required>
  Describe the subject, action, camera movement, lighting, and audio intent.
</ParamField>

<ParamField body="seconds" type="string" default="10">
  Output length: 4 to 15 seconds.
</ParamField>

<ParamField body="aspect_ratio" type="string">
  One of `21:9`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16`, `adaptive`. `adaptive` follows the input image or video. Send it explicitly; do not send a pixel `size`.
</ParamField>

<ParamField body="resolution" type="string" default="720p">
  One of `480p`, `720p`, `1080p`, `4k`. The price depends on the resolution.
</ParamField>

<ParamField body="image_urls" type="string[]" required>
  One to 2 public `http`/`https` image URLs, each up to 30 MB (JPEG, PNG, WEBP, BMP, GIF).
</ParamField>

<ParamField body="generate_audio" type="boolean" default="true">
  Set to `false` for a silent video.
</ParamField>

## Request

```bash theme={null}
curl https://api.freemodel.app/v1/videos \
  -H "Authorization: Bearer $FREEMODEL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedance-2.0-i2v",
    "prompt": "The lantern drifts upward as the street lights come on",
    "seconds": "5",
    "aspect_ratio": "21:9",
    "resolution": "720p",
    "image_urls": ["https://example.com/reference.jpg"]
  }'
```

The response returns a queued task `id`. Poll and download with the same `model`:

```bash theme={null}
curl "https://api.freemodel.app/v1/videos/$VIDEO_ID?model=seedance-2.0-i2v" \
  -H "Authorization: Bearer $FREEMODEL_API_KEY"

curl -L "https://api.freemodel.app/v1/videos/$VIDEO_ID/content?model=seedance-2.0-i2v" \
  -H "Authorization: Bearer $FREEMODEL_API_KEY" \
  --output video.mp4
```

See the [Video API workflow](/api-reference/video-generation) for polling intervals, webhooks, and failure handling.

## Price examples

| Resolution | Per second | 5-second clip |
| ---------- | ---------- | ------------- |
| 480p       | \$0.095    | \$0.475       |
| 720p       | \$0.19     | \$0.95        |
| 1080p      | \$0.48     | \$2.40        |
| 4k         | \$1.10     | \$5.50        |

<Note>
  Media inputs must be public `http` or `https` URLs. Private network addresses and
  local files are rejected. Failed generations are not charged.
</Note>