ByteDanceFastStandard

Seedance 2.0 Mini

Lighter, cheaper variant of ByteDance's Seedance 2.0. Native audio, multimodal reference inputs (images/videos/audio), text-to-video and image-to-video, capped at 720p (no 1080p/4K tier).

1280 credits

per second, tiered by resolution and audio generation

Native synchronized audio generation (dialogue, sound effects, background music)

Multimodal reference inputs — up to 9 reference images, 3 reference videos, 3 reference audio clips

Text-to-video and image-to-video (first/last frame) generation

Intelligent duration mode that auto-picks the best clip length

Budget-tier pricing at up to 720p resolution

Run it right now

Test this model instantly in the Console Playground — no code required

Use with AI Assistant

Copy usage instructions for Claude, ChatGPT, or other AI

llms.txtllms.txt ↗

Quick Start

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "bytedance/seedance-2.0-mini",
  "input": {
    "prompt": "A young woman smiles at the camera and says \"This product is amazing!\" Bright studio lighting, gentle zoom-in.",
    "resolution": "720p",
    "aspect_ratio": "9:16",
    "generate_audio": true,
    "duration": 5
  }
}'

Parameters

Parameter	Type	Required	Default	Description
`prompt`	string	Yes	-	Text prompt for video generation. Maximum 4000 characters. BytePlus recommends keeping prompts under 600 English words for best results.
`image`	string	No	-	Input image for image-to-video generation (first frame). Cannot be combined with reference images.
`last_frame_image`	string	No	-	Input image for last frame generation. Only works if a first frame image is also provided. Cannot be combined with reference images.
`reference_images`	array	No	[]	Reference images (up to 9) for character consistency, style guidance, and scene composition. Cannot be used together with first/last frame images. You can reference them in your prompt as [Image1], [Image2], etc.
`reference_videos`	array	No	[]	Reference videos (up to 3, total duration max 15s) for motion transfer, style reference, and editing. Reference them in your prompt as [Video1], [Video2], etc.
`reference_audios`	array	No	[]	Reference audio files (up to 3, total duration max 15s) for audio-driven generation and lip-sync. Requires at least one reference image or video. Reference them in your prompt as [Audio1], [Audio2], etc.
`duration`	integer	No	5	Video duration in seconds. Set to -1 for intelligent duration (model picks the best length).
`resolution`	string	No	720p	Video resolution. 480p720p
`aspect_ratio`	string	No	16:9	Video aspect ratio. Set to 'adaptive' to let the model choose the best ratio based on inputs. 16:94:31:13:49:1621:99:21adaptive
`generate_audio`	boolean	No	true	Generate synchronized audio with the video, including dialogue (use double quotes in prompt), sound effects, and background music.
`seed`	integer	No	-	Random seed. Set for reproducible generation.

How to Provide File Input

There are 3 ways to provide files for the imagelast_frame_imagereference_imagesreference_videosreference_audios parameters:

Recommended

Direct Upload (Multipart)

Attach files directly to POST /v1/predictions/upload. No separate upload step needed.

curl -X POST "https://api.core.today/v1/predictions/upload" \
  -H "X-API-Key: cdt_your_api_key" \
  -F "model=bytedance/seedance-2.0-mini" \
  -F 'input={"prompt":"your prompt here"}' \
  -F "file:image=@your_file.png"

Image URL

Pass a publicly accessible URL directly. You can also use file_url from the Storage API.

{
  "model": "bytedance/seedance-2.0-mini",
  "input": {
    "prompt": "your prompt here",
    "image": "https://example.com/image.jpg"
  }
}

See the File Upload docs for more upload methods including Presigned URLs.

Common Parameters

Common parameters used when calling POST /v1/predictions.

Parameter	Type	Required	Default	Description
`model`	string	Yes	-	Model identifier
`input`	object	Yes	-	Object containing the model-specific parameters from the table above
`output_folder`	string	No	-	Folder path for output files (max 256 chars, '..' not allowed)
`webhook_url`	string	No	-	Webhook URL to call on completion
`is_public`	boolean	No	false	If true, output files are also available via permanent public URLs

Examples

Social clip with native dialogue

Generate a short vertical clip with synchronized dialogue and background music for social media.

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "bytedance/seedance-2.0-mini",
  "input": {
    "prompt": "A young woman smiles at the camera and says \"This product is amazing!\" Bright studio lighting, gentle zoom-in.",
    "resolution": "720p",
    "aspect_ratio": "9:16",
    "generate_audio": true,
    "duration": 5
  }
}'

Character-consistent scene from reference images

Use reference images to keep a character consistent across a generated scene.

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "bytedance/seedance-2.0-mini",
  "input": {
    "prompt": "[Image1] walks through a busy night market, neon signs reflecting in the rain-soaked street.",
    "reference_images": [
      "https://example.com/character-ref.jpg"
    ],
    "resolution": "720p",
    "duration": -1
  }
}'