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

# Seedance 1.5 Pro

> ByteDance's latest video generation with native audio, 4-12 second output, up to 1080p.

ByteDance's latest video generation with native audio, 4-12 second output, up to 1080p. Excellent motion quality and prompt adherence.

| | |
| - | - |
| Model id | `seedance-1.5-pro-fal` |
| Media | video |
| Submit to | `POST /v1/videos` |
| Price | 9.1 credits per\_second before discounts |
| Typical time | about 120.0 s |

## Request

**Required:** `prompt`\
**Optional:** `aspect_ratio`, `duration_seconds`, `quality`, `reference_images`

```json theme={null}
{
  "model": "seedance-1.5-pro-fal",
  "prompt": "@image1 is the stylish cousin — sunglasses on his head only, eyes visible. He leans in and says, \"Asheerwad baad mein… pehle mera Dubai wala look.\" Soft banquet light, fixed camera. No subtitles.",
  "aspect_ratio": "16:9",
  "duration_seconds": 5,
  "quality": "720p"
}
```

| Field | Allowed | Default |
| - | - | - |
| `aspect_ratio` | `21:9`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16` | `"16:9"` |
| `duration_seconds` | 4.0 – 12.0 seconds | `5` |
| `quality` | `480p`, `720p`, `1080p` | `"720p"` |
| `reference_images` | asset ids (up to 4) | |

Reference inputs take asset ids from [`POST /v1/uploads`](/uploads) or an earlier output's `asset_id`.
Prices and allowed values come from the live catalog; `GET /v1/models/seedance-1.5-pro-fal` is always current.


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