# Seedance 2.5 API on Opennan

> Seedance 2.5 API on Opennan: $0.2867/s at 480p.

- Maker: ByteDance
- Category: Video
- Model id: `seedance-2-5`
- Endpoint: POST https://api.opennan.com/v1/videos/generations
- MCP: https://api.opennan.com/v1/mcp (generate_video)
- Page: https://opennan.com/models/seedance-2-5

## Seedance 2.5 API prices

| Tier | Opennan | Official | Below official |
| --- | --- | --- | --- |
| 480p, Standard | $0.2867/s ($1.147 for 4 s) | Below the maker's price | - |
| 720p, Standard | $0.6149/s ($2.46 for 4 s) | Below the maker's price | - |
| 1080p, Standard | $1.514/s ($6.053 for 4 s) | No official price | - |

Official is the model maker's own list price for the same tier. Where the maker publishes a price, we never sell above it, most tiers at least 10% below.

## Call Seedance 2.5 from code

```bash
curl https://api.opennan.com/v1/videos/generations \
  -H "Authorization: Bearer $OPENNAN_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"seedance-2-5","prompt":"Rain on a neon street at night, slow push-in","duration":4,"quality":"480p","aspect_ratio":"16:9"}'

# Then poll until "status" is "succeeded" or "failed":
curl https://api.opennan.com/v1/tasks/<task id> -H "Authorization: Bearer $OPENNAN_KEY"
```

## Seedance 2.5 API questions

### How much does the Seedance 2.5 API cost?

Seedance 2.5 API on Opennan: $0.2867/s at 480p. Prices are in US dollars per call, shown before you run, and every tier is in the price table.

### What inputs does Seedance 2.5 take?

Text prompt, Image, Start and end frames, Reference images, Reference videos.

### Which options can a call set?

Lengths: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 seconds. Resolutions: 480p, 720p, 1080p. Aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, 9:21.

### How is it billed?

Per video: the price depends on resolution, length and sound, and is shown before the call.

### What happens if a generation fails?

A failed task is refunded in full. You pay only for results.

### How do I call Seedance 2.5 from an AI agent?

Add the MCP server https://api.opennan.com/v1/mcp with your API key as a bearer token, then call the generate_video tool with model "seedance-2-5". Or send a POST to https://api.opennan.com/v1/videos/generations.

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