Video
Dreamina Seedance 2.5 (Multimodal)
Credit-based pricing. Supports image-to-video, reference images, reference video.
Output
video
Aspect ratio
auto, 21:9, 16:9, 4:3, 1:1, 3:4, 9:16
Resolution
480p, 720p, 1080p
Duration
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
Inputs
- Start image (optional)
- Reference image (optional)
- Reference video (optional)
- Reference audio (optional)
- Generates audio
Example prompt
Create a cohesive cinematic sequence using the uploaded character, location, source footage, and soundtrack as references.Try this prompt →
LLM-ready
API & LLM schema
Exact request contract for this model. Agents can fetch it from /api/v1/models?id=bytedance/seedance-2.5/multimodal-to-video.
POST
/api/v1/generate21 fields · 2 required| Field | Type | Requirement | Contract |
|---|---|---|---|
model_id | constant | Required | ArtEmotion model identifier. |
extra | object | Optional | Model-specific settings may also be nested here. |
max_credits | number | Optional | Reject before submission if the estimated list price exceeds this cap. · Range: 1–… |
webhook_url | string | Optional | Format: uri |
webhook_secret | string | Optional | Optional model input. |
folder_id | string | Optional | Optional model input. |
prompt | string | Required | Optional model input. |
seedance_task_type | string | Optional | Choose Edit or Extend when the prompt modifies or continues an attached source video. Put the primary source video first. · Allowed: generate, edit, extend · Default: generate |
seedance_image_role | string | Optional | Auto treats one image as a first frame and multiple images, or images combined with video/audio, as multimodal references. · Allowed: auto, reference, first_frame · Default: auto |
generate_audio | boolean | Optional | Generate synchronized audio with the video. Audio-only reference input is supported. · Default: true |
output_format | string | Optional | Container format returned by BytePlus. · Allowed: mp4, mov · Default: mp4 |
video_urls | array<string> | Optional | Up to 10 clips, 2–30 seconds each and 30 seconds total. Refer to them as @Video1, @Video2, and so on. · Items: 0–10 |
audio_urls | array<string> | Optional | Up to 10 clips, 2–30 seconds each and 30 seconds total. Refer to them as @Audio1, @Audio2, and so on. · Items: 0–10 |
aspect_ratio | string | Optional | Allowed: auto, 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 |
resolution | string | Optional | Allowed: 480p, 720p, 1080p |
duration | number | Optional | Allowed: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 |
image_url | string | Optional | Format: uri |
end_image_url | string | Optional | Format: uri |
reference_image_urls | array<string> | Optional | Items: 0–30 |
reference_video_urls | array<string> | Optional | Items: 0–10 |
reference_audio_urls | array<string> | Optional | Items: 0–10 |
Minimal request example
{
"model_id": "bytedance/seedance-2.5/multimodal-to-video",
"prompt": "Create a cohesive cinematic sequence using the uploaded character, location, source footage, and soundtrack as references."
}Raw JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://www.artemotion.ai/api/v1/models?id=bytedance%2Fseedance-2.5%2Fmultimodal-to-video",
"title": "Dreamina Seedance 2.5 (Multimodal) generation request",
"description": "Request body accepted by POST /api/v1/generate for bytedance/seedance-2.5/multimodal-to-video.",
"type": "object",
"properties": {
"model_id": {
"type": "string",
"const": "bytedance/seedance-2.5/multimodal-to-video",
"description": "ArtEmotion model identifier."
},
"extra": {
"type": "object",
"additionalProperties": true,
"description": "Model-specific settings may also be nested here."
},
"max_credits": {
"type": "number",
"minimum": 1,
"description": "Reject before submission if the estimated list price exceeds this cap."
},
"webhook_url": {
"type": "string",
"format": "uri",
"maxLength": 2048
},
"webhook_secret": {
"type": "string",
"maxLength": 512
},
"folder_id": {
"type": "string"
},
"prompt": {
"type": "string"
},
"seedance_task_type": {
"title": "Task Type",
"description": "Choose Edit or Extend when the prompt modifies or continues an attached source video. Put the primary source video first.",
"default": "generate",
"type": "string",
"enum": [
"generate",
"edit",
"extend"
]
},
"seedance_image_role": {
"title": "Image Role",
"description": "Auto treats one image as a first frame and multiple images, or images combined with video/audio, as multimodal references.",
"default": "auto",
"type": "string",
"enum": [
"auto",
"reference",
"first_frame"
]
},
"generate_audio": {
"title": "Generate Audio",
"description": "Generate synchronized audio with the video. Audio-only reference input is supported.",
"default": true,
"type": "boolean"
},
"output_format": {
"title": "Output Format",
"description": "Container format returned by BytePlus.",
"default": "mp4",
"type": "string",
"enum": [
"mp4",
"mov"
]
},
"video_urls": {
"title": "Reference Videos",
"description": "Up to 10 clips, 2–30 seconds each and 30 seconds total. Refer to them as @Video1, @Video2, and so on.",
"type": "array",
"items": {
"type": "string"
},
"maxItems": 10
},
"audio_urls": {
"title": "Reference Audio",
"description": "Up to 10 clips, 2–30 seconds each and 30 seconds total. Refer to them as @Audio1, @Audio2, and so on.",
"type": "array",
"items": {
"type": "string"
},
"maxItems": 10
},
"aspect_ratio": {
"type": "string",
"enum": [
"auto",
"21:9",
"16:9",
"4:3",
"1:1",
"3:4",
"9:16"
]
},
"resolution": {
"type": "string",
"enum": [
"480p",
"720p",
"1080p"
]
},
"duration": {
"type": "number",
"enum": [
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30
]
},
"image_url": {
"type": "string",
"format": "uri"
},
"end_image_url": {
"type": "string",
"format": "uri"
},
"reference_image_urls": {
"type": "array",
"items": {
"type": "string",
"format": "uri"
},
"maxItems": 30
},
"reference_video_urls": {
"type": "array",
"items": {
"type": "string",
"format": "uri"
},
"maxItems": 10
},
"reference_audio_urls": {
"type": "array",
"items": {
"type": "string",
"format": "uri"
},
"maxItems": 10
}
},
"required": [
"model_id",
"prompt"
],
"additionalProperties": false
}FAQ
How much does Dreamina Seedance 2.5 (Multimodal) cost on ArtEmotion?
Credit-based pricing. You pay in ArtEmotion credits — every plan and top-up converts USD to credits at a fixed rate.
Do I get my credits back if Dreamina Seedance 2.5 (Multimodal) fails?
Yes — failed generations are never charged. The credits are released back to your balance automatically.
Can I call Dreamina Seedance 2.5 (Multimodal) from the API?
Yes. Use POST /api/v1/generate with model_id: "bytedance/seedance-2.5/multimodal-to-video". See the API reference for the full schema.
Where are my generations stored?
Every output is saved to your personal Library. You can export or delete everything any time from Privacy & deletion.
Ready to generate with Dreamina Seedance 2.5 (Multimodal)?
Start now →No commitment. New accounts get 50 free credits on signup. See pricing.