# Seedance 2.5 API

> ByteDance's newest video model: up to 30 seconds with sound, reference images, video and audio, and first and last frames. By ByteDance, on Revana from $0.06 per second of video. The lowest listed Seedance 2.5 price we found at 1080p, 480p with a video input and 1080p with a video input (checked 2026-10-26).

- Model id: `seedance-2.5`
- Kind: video
- Maker: ByteDance
- Tasks: Text to video, Image to video, First + last frame, Reference to video, Video to video
- Resolutions: 480p, 720p, 1080p
- Durations: 4 to 30 seconds
- Aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, adaptive
- Audio: supported (`"audio": true`)
- Input images: up to 30
- Routes: 5 (starts on the cheapest, falls back automatically)
- Status: live on the API
- Page: https://revana.si/models/seedance-2.5

## Price (per second of video, USD)

| Resolution | Price | Credits |
|---|---|---|
| 480p | $0.11 | 11 |
| 720p | $0.25 | 25 |
| 1080p | $0.55 | 55 |
| 480p + with video input | $0.06 | 6 |
| 720p + with video input | $0.15 | 15 |
| 1080p + with video input | $0.34 | 34 |

100 credits = $1. Charged once, only for the route that succeeds; failed generations cost nothing.

## Price at other APIs (checked 2026-10-26)

Per second of output for a 16:9 clip with sound. Token prices are converted at width × height × 24 / 1024 tokens a second; card and top-up fees are not included.

| API | 480p | 720p | 1080p |
|---|---|---|---|
| Revana | $0.11 | $0.25 | $0.55 |
| ByteDance's own API | $0.1028 | $0.2311 | – |
| fal | $0.2205 | $0.473 | – |
| Runway API | $0.20 | $0.30 | $0.68 |
| EvoLink | $0.138 | $0.296 | $0.739 |
| Atlas Cloud | $0.134 | – | – |
| Replicate | $0.1028 | $0.2312 | – |
| Segmind | $0.1065 | $0.2389 | $0.5876 |
| WaveSpeed | $0.18 | $0.36 | $0.90 |

With a video input (the input clip's seconds are billed too):

| API | 480p | 720p | 1080p |
|---|---|---|---|
| Revana | $0.06 | $0.15 | $0.34 |
| ByteDance's own API | $0.0615 | $0.1382 | – |
| EvoLink | $0.084 | $0.18 | $0.45 |

Lowest listed price per second: 480p ByteDance's own API and Replicate ($0.1028); 720p ByteDance's own API ($0.2311); 1080p Revana ($0.55); 480p with a video input Revana ($0.06); 720p with a video input ByteDance's own API ($0.1382); 1080p with a video input Revana ($0.34).
Full comparison and sources: https://revana.si/blog/seedance-2-5-api-price-comparison (data: https://revana.si/data/market-prices.json)

## Request

POST https://api.revana.si/v1/generations with `Authorization: Bearer $REVANA_API_KEY`:

```json
{
  "model": "seedance-2.5",
  "input": {
    "prompt": "A slow dolly shot through a neon-lit night market in the rain, steam rising from food stalls",
    "resolution": "720p",
    "duration": 4,
    "aspect_ratio": "16:9",
    "audio": true
  }
}
```

Poll `GET /v1/generations/{id}` until `status` is `succeeded` or `failed`, then download `GET /v1/generations/{id}/content`. Full API: https://revana.si/llms.txt

## Similar models

- [Seedance 2.0](https://revana.si/models/seedance-2.0.md): from $0.08 per second of video
- [Seedream 4.5](https://revana.si/models/seedream-4.5.md): from $0.04 per image
- [Seedream 5.0 Pro](https://revana.si/models/seedream-5.0-pro.md): from $0.04 per image
- [ByteDance Lip Sync](https://revana.si/models/bytedance-lipsync.md): from $0.05 per second of video
- [OmniHuman 1.5](https://revana.si/models/omnihuman-1.5.md): from $0.17 per second of video
- [Seedance 2.0 Face](https://revana.si/models/seedance-2.0-face.md): from $0.13 per second of video