Bytedance Seedance 2.0 Mini Video Extend

Playground

Seedance 2.0 Mini is ByteDance’s faster, lower-cost tier of Seedance 2.0 for cinematic multi-shot video — narrative sequences, AI camera control (zoom/pan/tracking), and consistent characters across scenes, from text or image prompts. 720p-1080p, 5-12s, aspect ratios 16:9 / 4:3 / 1:1 / 3:4 / 9:16. Priced at 50% of standard Seedance 2.0.

Features

Seedance 2.0 Mini

Lower Cost, Higher Quality Videos. Seedance 2.0 Mini is ByteDance’s faster, lower-cost tier of Seedance 2.0 — same cinematic multi-shot storytelling, AI camera control, and character consistency, optimized for reduced generation time and per-creation cost.

Pricing: 50% of standard Seedance 2.0.
Resolution: 720p-1080p. Duration: 5-12s.
Aspect ratios: 16:9, 4:3, 1:1, 3:4, 9:16.
References: up to 9 images, 9 videos, 3 audio.

Best for ads/brand content, short narrative, social (TikTok/Reels/Shorts), and e-commerce product video.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result


# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/bytedance/seedance-2.0-mini/video-extend" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "resolution": "720p",
    "duration": 5,
    "enable_web_search": false,
    "generate_audio": true
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

Parameter	Type	Required	Default	Range	Description
prompt	string	Yes		-	Describe the cinematic continuation — action, camera movement, lighting, mood.
video	string	Yes		-	URL of the input video to extend. Generation continues from the last frame.
last_image	string	No	-	-	Optional target last-frame URL. If provided, the new segment interpolates from the input video's last frame to this image.
resolution	string	No	720p	480p, 720p, 1080p	Output resolution of the new segment.
duration	integer	No	5	4 ~ 15	Length in seconds of the new segment to append (4-15).
enable_web_search	boolean	No	false	-	Enable web search for real-time information.
generate_audio	boolean	No	true	-	Whether to generate native audio synchronized with the output video. Defaults to true.

Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data.id	string	Unique identifier for the prediction, Task Id
data.model	string	Model ID used for the prediction
data.outputs	array	Array of URLs to the generated content (empty when status is not `completed`)
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

Result Request Parameters

Parameter	Type	Required	Default	Description
id	string	Yes	-	Task ID

Result Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data	object	The prediction data object containing all details
data.id	string	Unique identifier for the prediction, the ID of the prediction to get
data.model	string	Model ID used for the prediction
data.outputs	object	Array of URLs to the generated content (empty when status is not completed).
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

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