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seedance-1.5-pro is the previous-generation ByteDance Seedance Pro tier. Kept on the rate card for accounts that pinned to it before the newer Seedance series shipped — new projects should default to seedance-pro (better fidelity, similar pricing). Documented here so existing pinned integrations have a clear reference. Pricing: $0.05 / second of generated footage — see the rate card. Failures don’t bill.

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Protocols

ProtocolPathPurpose
OpenAI Video — submitPOST https://llm.bytespike.ai/v1/videos/generationsenqueues; returns task_id
OpenAI Video — pollGET https://llm.bytespike.ai/v1/videos/tasks/{task_id}returns status and result_url

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Quickstart

TASK_ID=$(curl -s https://llm.bytespike.ai/v1/videos/generations \
  -H "Authorization: Bearer $BYTESPIKE_API_KEY" \
  -H "content-type: application/json" \
  -d '{
    "model": "seedance-1.5-pro",
    "prompt": "国潮风短片，少女在敦煌色彩的背景前转身",
    "duration_seconds": 5,
    "size": "1280x720"
  }' | jq -r .task_id)

# Poll pattern — see /models/sora2#quickstart

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Capabilities

CapabilitySupported
Text-to-video✅
Image-to-video (with source_image)✅
duration_seconds 5✅
size 1280×720✅
Modalityvideo
Capability bucketvideo_generate

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When to use

  • Existing pinned integration — your code targets seedance-1.5-pro explicitly and a model swap requires regression testing you don’t want to do.
  • Reproducing earlier output — match an existing reel that was generated on 1.5.
When not to use:

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