Seedance 1.5 Pro Super — Start-End Frame to Video

Generate smooth transition videos between two keyframes using ByteDance+ Seedance 1.5 Pro Super

POST /v1/jobs/submit

Seedance 1.5 Pro Super — Start-End Frame to Video

cURL

curl --request POST \
  --url https://api.muvi.video/v1/jobs/submit \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "<string>",
  "input": {
    "prompt": "<string>",
    "start_frame_url": "<string>",
    "end_frame_url": "<string>",
    "resolution": "<string>",
    "duration": "<string>",
    "aspect_ratio": "<string>",
    "generate_audio": true,
    "camera_fixed": true
  }
}
'

200

{
  "jobId": "<string>",
  "status": "<string>",
  "estimatedCompletionTime": "<string>",
  "costMicroCents": 123
}

Generate a video that smoothly transitions from a start frame to an end frame using ByteDance+ Seedance 1.5 Pro Super. Supports up to 1080p resolution, 12-second durations, optional generated audio, and a fixed-camera mode.

Property	Value
Provider	ByteDance+
Model	Seedance 1.5 Pro Super
Capability	Start-End Frame to Video
Base Cost	15,000 micro-cents/second ($0.015/sec)
Processing Time	~300 seconds

Request Body

model · string · required

Model slug. Use bytedance-plus/seedance-1.5-pro-super/start-end-frame-to-video.

input · object · required

Input parameters for start-end frame video generation.

Hide properties

prompt · string

Optional text description of the motion or transition (max 5000 characters).

start_frame_url · string · required

URL of the start frame image.

end_frame_url · string · required

URL of the end frame image.

resolution · string

Output resolution. Default: 720p. Options: 480p, 720p, 1080p.

duration · string

Video duration in seconds. Default: 5. Options: 4, 5, 6, 7, 8, 9, 10, 11, 12.

aspect_ratio · string

Video aspect ratio. Default: 16:9. Options: 21:9, 16:9, 4:3, 1:1, 3:4, 9:16.

generate_audio · boolean

Generate synchronized audio for the video. Default: true.

camera_fixed · boolean

Lock the camera position for a static shot. Default: false.

webhookUrl · string

HTTPS URL to receive a webhook notification when the job completes or fails.

Pricing

Base cost: 15,000 micro-cents per second ($0.015/sec)

finalCost = baseCost × resolution × generate_audio × duration

Factor	Option	Multiplier
Resolution	480p	1x
	720p	1.8667x
	1080p	3.7333x
Generate Audio	false	1x
	true	2x
Duration	4–12	matches value (e.g. 5 → 5x)

Default cost: 720p, audio on, 5 seconds = 15,000 × 1.8667 × 2 × 5 = 280,005 micro-cents ($0.28)

Response

jobId · string

Unique identifier for the submitted job.

status · string

Initial job status. Always "pending" on successful submission.

estimatedCompletionTime · string

ISO 8601 timestamp of the estimated completion time.

costMicroCents · number

The cost of the job in micro-cents.

Code Examples

cURL

curl -X POST https://api.muvi.video/v1/jobs/submit \
  -H "Authorization: Bearer $PIXELBYTE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance-plus/seedance-1.5-pro-super/start-end-frame-to-video",
    "input": {
      "prompt": "Smoothly transition from sunrise to sunset",
      "start_frame_url": "https://example.com/image.jpg",
      "end_frame_url": "https://example.com/image.jpg",
      "resolution": "720p",
      "duration": "5",
      "aspect_ratio": "16:9",
      "generate_audio": true
    }
  }'