SeeDance 1.5 Pro

ByteDance SeeDance 1.5 Pro – 5/10/12 s clips at 720p or 1080p. Six aspect ratios, first-and-last-frame interpolation.

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Videobytedance/seedance-1.5-pro$0.2800–$0.5000 / sec

Base URL

https://api.zekron.tech/api/v1

Supported modes

text-to-videofirst-last-frame

Parameters

Pass these inside the input object when creating a task.

Field	Required
prompt	required
mode	optional
aspect_ratio	optional
duration	optional
resolution	optional
image_url	optional
end_image_url	optional
seed	optional

promptrequired

modeoptional

aspect_ratiooptional

durationoptional

resolutionoptional

image_urloptional

end_image_urloptional

seedoptional

Example request

bash

curl -X POST https://api.zekron.tech/api/v1/tasks \
  -H "Authorization: Bearer zk_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "bytedance/seedance-1.5-pro",
  "input": {
    "prompt": "a cinematic shot of a lighthouse at golden hour",
    "duration": 5,
    "aspect_ratio": "16:9",
    "resolution": "1080p",
    "mode": "std",
    "seed": 42
  }
}'

Example response

json

{
  "id": "zk_task_8f3a2b1c9d",
  "model": "bytedance/seedance-1.5-pro",
  "status": "processing",
  "created_at": "2026-06-10T12:00:00Z"
}

Poll GET https://api.zekron.tech/api/v1/tasks/{id} until status is success or failed.

Pricing

This model is billed at $0.2800–$0.5000 / sec. You are only charged for successful generations — failed tasks are never billed. Generated outputs are retained for 30 days before they expire.