Seedance Pro Fast Video API

Quick start

Breaking change (2025-12-10): mode → type; input_image_url → image_urls (array).
Platform: Wizzx gateway; Authorization: Bearer <your_api_key>.
Submit: POST https://api.wizzx.ai/api/v1/task/submit/seedance-pro-fast → returns task_id.
Poll: POST https://api.wizzx.ai/api/v1/task/status with task_id.
Modes: text-to-video / image-to-video; fixed 24fps; duration 5s or 10s. Omit resolution for the current 480p default; explicit values may be 720p or 1080p.

Auth

Authorization: Bearer <your_api_key>

Submit job

Endpoint: POST https://api.wizzx.ai/api/v1/task/submit/seedance-pro-fast, Content-Type: application/json

Required

Field	Type	Notes
`prompt`	string	Video description
`type`	string	`text-to-video` or `image-to-video`

Optional

Field	Type	Default	Notes
`image_urls`	[]string	-	Required for `image-to-video`, max 1 image
`duration`	int	5	`5` or `10` seconds
`resolution`	string	Omit → 480p	Explicit `720p` / `1080p`; explicit `480p` is temporarily rejected by gateway binding
`aspect_ratio`	string	16:9 / adaptive	text-to-video default `16:9`, image-to-video default `adaptive`
`seed`	int	-1	RNG seed; -1 for random, range [-1, 4294967295]
`watermark`	bool	false	Add watermark
`camera_fixed`	bool	false	Lock camera position

Image requirements (img2video)

Formats: jpeg/png/webp/bmp/tiff/gif
Aspect ratio: 0.4-2.5
Short side >300px, long side <6000px
Size <30MB

Example: Text2Video

curl -X POST https://api.wizzx.ai/api/v1/task/submit/seedance-pro-fast \
  -H "Authorization: Bearer <api_key>" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A cat playing piano in a cozy living room",
    "type": "text-to-video",
    "duration": 5,
    "aspect_ratio": "16:9"
  }'

Example: Image2Video

curl -X POST https://api.wizzx.ai/api/v1/task/submit/seedance-pro-fast \
  -H "Authorization: Bearer <api_key>" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "Make the character walk forward gracefully",
    "type": "image-to-video",
    "image_urls": ["https://example.com/character.jpg"],
    "duration": 10,
    "resolution": "720p",
    "aspect_ratio": "adaptive"
  }'

Success response:

{
  "code": 0,
  "message": "success",
  "data": {
    "task_id": "4bbbc9e0-8de8-4f35-a31e-8596c1a6d18a",
    "model_key": "seedance-pro-fast",
    "credits_deducted": 200
  },
  "request_id": "d54c66a8-0f0f-439c-bd3a-36f3fd275881"
}

Query status

Endpoint: POST https://api.wizzx.ai/api/v1/task/status

{
  "task_id": "4bbbc9e0-8de8-4f35-a31e-8596c1a6d18a"
}

Response example:

{
  "code": 0,
  "message": "success",
  "data": {
    "task_id": "4bbbc9e0-8de8-4f35-a31e-8596c1a6d18a",
    "status": "SUCCEEDED",
    "result_urls": [
      "https://cdn.example.com/video.mp4"
    ],
    "error": "",
    "credits_deducted": 200
  },
  "request_id": "499347b1-ff99-4ba2-a977-ad655431919d"
}

Client-visible states: PENDING, QUEUED, PROCESSING, REVIEW_REQUIRED, SUCCEEDED, and FAILED.

Pricing

The 480p tier is reached by omitting resolution. Explicit resolution: "480p" is currently rejected by the shared gateway binding.

Resolution	Credits/second	vs Official
480p	10	Save 33%
720p	20	Save 20%
1080p	50	Save 17%

Official price: 480p

0.015/s, 720p

0.025/s, 1080p

0.06/s. Our price: 10/20/50 credits per second (1000 credits =

1).

Resolution	Duration	Credits
480p	5s	50
480p	10s	100
720p	5s	100
720p	10s	200
1080p	5s	250
1080p	10s	500

FAQ

Where did mode go? Unified as type, values now text-to-video / image-to-video.
How to keep results repeatable? Use seed; same seed + params yields similar results.
How is aspect ratio handled for image-to-video? Default adaptive auto-selects based on input; manual ratios are cropped automatically.
Can fps be changed? Fixed at 24fps.
What does camera_fixed do? Locks camera position for a steadier shot.

Getting started

Agent integrations

Video Generation

Image Generation

Seedance Pro Fast Video API

Quick start

Auth

Submit job

Required

Optional

Example: Text2Video

Example: Image2Video

Query status

Pricing

FAQ

​Quick start

​Auth

​Submit job

​Required

​Optional

​Example: Text2Video

​Example: Image2Video

​Query status

​Pricing

​FAQ

Quick start

Auth

Submit job

Required

Optional

Example: Text2Video

Example: Image2Video

Query status

Pricing

FAQ