# Seedance 2.5

> Video AI Model by ByteDance — available on Layer

ByteDance's Seedance 2.5 video model with up to 30s clips, 480p/720p/1080p output, and native audio.

Seedance 2.5 is the next step in ByteDance's Seedance video line, extending generation to clips up to 30 seconds with synchronized audio. It supports text-to-video, image-to-video (including first and last frame control), and multi-reference generation from up to 30 reference images, 10 video clips, and 10 audio files, at 480p, 720p, or 1080p across common cinematic aspect ratios. To restyle a whole clip shot for shot, pass a restyled still of its first frame as `first_frame` and the source clip as `reference_video`. Built for advertising, social, and short-form production where longer takes and lip-synced speech matter.

## Specifications

| Property | Value |
|----------|-------|
| Provider | ByteDance |
| Category | Video |
| Price | 9.07 / megapixel second |
| Aspect Ratios | 1:1, 4:3, 3:4, 16:9, 9:16, 21:9 |
| Durations | 4s, 5s, 6s, 7s, 8s, 9s, 10s, 11s, 12s, 13s, 14s, 15s, 16s, 17s, 18s, 19s, 20s, 21s, 22s, 23s, 24s, 25s, 26s, 27s, 28s, 29s, 30s |

## Capabilities

- Audio Generation

## Frequently Asked Questions

### How much does Seedance 2.5 cost? Is it free?

Generating assets on Layer requires using Creative Units. This model's current price is 9.07 / megapixel second.

### How does Layer's pricing work?

There are no seat fees, feature gates, or plans on Layer. Instead, our platform uses a consumption based system with Creative Units (CUs) with a flexible monthly subscription. Every generation on Layer (image, video, 3D, or audio) consumes a Creative Unit, and you only pay for what you create.

### What Elo score does Seedance 2.5 have?

Seedance 2.5 has an Artificial Analysis Arena Elo of 1104, which places it #69 of the 84 scored video models on Layer. Gemini Omni Flash leads that ranking with an Elo of 1368.

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