Overview

Seedance 2.5 is the new flagship Seedance model, providing high-quality video generation from text prompts, with optional image references to control subject appearance or style, plus video and audio references — all supported on the single seedance-2.5 task type (no VIP split).

Currently available model:

seedance-2.5 (supports image / video / audio references)

For a detailed comparison with the Seedance 2.0 family, see Model Comparison.

Pricing

Model	Resolution	Price per second
seedance-2.5	480p	$0.30
seedance-2.5	720p	$0.60

With video references, billing is based on input video duration × (price per second / 2) + output duration × price per second.

1080p is not available for seedance-2.5.

Note

Peak hours: during high-traffic periods, queue times may be extended.

Resolution: 480p or 720p; defaults to 720p when omitted. 1080p is not supported and will be rejected.

Duration: any integer from 4 to 15 seconds (default 5).

Reference images: the API supports using one or more images as references in your prompts. See Using Image References for syntax. Maximum 9 images.

Video/Audio references: maximum 3 videos, maximum 3 audios (total audio duration ≤ 15s). Audio references require at least one image or video reference.

Aspect ratio: the aspect ratio of the reference image takes precedence over the aspect ratio specified in the request parameters.

Using References in Prompts

When you include media in your request, you can reference them directly in the text prompt using @typeN placeholders, where N is the 1-based position within that media type.

Syntax

@image1, @image2, … – reference images

@video1, @video2, … – reference videos

@audio1, @audio2, … – reference audios

You can use multiple references in a single prompt to indicate different subjects or transitions.

The engine automatically converts @imageN / @videoN / @audioN to the upstream API format for compatibility. You may also use the Chinese format (@图片N / @视频N / @音频N) directly if preferred.

Examples

Single image reference

The cat in @image1 walks through a garden

Morphing effect

@image1 transforms into @image2

Multi-subject scene

The whale in @image1 meets the ninja in @image2

Video + Audio reference

The character in @image1 dances to @audio1 in the scene from @video1

Validation

If your prompt references media that was not provided (e.g., you use @image3 but only two images are supplied), the request will be rejected with a 400 Bad Request error.

Video References

seedance-2.5 supports video references via the video_urls array. You can provide up to 3 video URLs. The input videos are used as references for the generation.

How it works

Provide video URLs in the video_urls array (maximum 3).

Total video reference duration must not exceed 15.4 seconds.

Billing is based on (input video total duration + output duration) × price per second.

You may combine video references with image references (via image_urls) and audio references (via audio_urls).

The input video must pass a content safety review.

Audio References

seedance-2.5 supports audio references via the audio_urls array. You can provide up to 3 audio URLs.

How it works

Provide audio URLs in the audio_urls array (maximum 3).

Total audio duration must not exceed 15 seconds.

Audio references require at least one image or video reference — audio-only submissions are not supported.

Supported formats: mp3, ogg, wav, m4a, aac.

Tips

Use publicly accessible media URLs (e.g., hosted on a CDN or cloud storage).

Keep reference media short (5–15 seconds) for best results.

Describe the desired output clearly in your prompt.

application/json

Bodyapplication/json

Examples

Task created (pending)Task completed

{
    "code": 200,
    "data": {
        "task_id": "07ed43de-465d-43b1-b62c-44249b14d818",
        "model": "seedance",
        "task_type": "seedance-2.5",
        "status": "pending",
        "config": {
            "service_mode": "",
            "webhook_config": {
                "endpoint": "",
                "secret": ""
            }
        },
        "input": {
            "prompt": "A woman sings and strums her guitar",
            "mode": "text_to_video",
            "duration": 5,
            "aspect_ratio": "16:9",
            "resolution": "720p"
        },
        "output": null,
        "meta": {
            "created_at": "2026-02-27T13:33:26.10346684Z",
            "started_at": "0001-01-01T00:00:00Z",
            "ended_at": "0001-01-01T00:00:00Z",
            "usage": {
                "type": "point",
                "frozen": 30000000,
                "consume": 0
            },
            "is_using_private_pool": false
        },
        "detail": null,
        "logs": [],
        "error": {
            "code": 0,
            "raw_message": "",
            "message": "",
            "detail": null
        }
    },
    "message": "success"
}

Seedance 2.5 Preview

Overview

Pricing

Note

Using References in Prompts

Syntax

Examples

Single image reference

Morphing effect

Multi-subject scene

Video + Audio reference

Validation

Video References

How it works

Audio References

How it works

Tips

Request

Request Code Samples

Responses

Seedance 2.5 Preview

Overview#

Pricing#

Note#

Using References in Prompts#

Syntax#

Examples#

Single image reference#

Morphing effect#

Multi-subject scene#

Video + Audio reference#

Validation#

Video References#

How it works#

Audio References#

How it works#

Tips#

Request

Request Code Samples

Responses

Overview

Pricing

Note

Using References in Prompts

Syntax

Examples

Single image reference

Morphing effect

Multi-subject scene

Video + Audio reference

Validation

Video References

How it works

Audio References

How it works

Tips