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Seedance 1.0 Lite i2v is a video generation model from ByteDance’s Seedance series, available through AnyFast API. Create videos from text prompts and reference images using a multimodal content format.

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Key capabilities

  • Text-to-Video — Generate videos from text prompts
  • Image-to-Video — Use reference images as first frame
  • First + Last Frame — Specify both start and end frame images
  • Flexible Duration — Generate 2–12 second videos
  • Multiple Ratios — 16:9, 4:3, 1:1, 3:4, 9:16, 21:9
  • Multiple Resolutions — 480p, 720p, 1080p

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Quick example

curl https://www.anyfast.ai/v1/video/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao-seedance-1-0-lite-i2v-250428",
    "content": [
      {"type": "text", "text": "A cat walking through a field of sunflowers at golden hour"}
    ],
    "ratio": "16:9",
    "duration": 5,
    "resolution": "720p"
  }'

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Parameters

ParameterTypeRequiredDescription
modelstringYesMust be doubao-seedance-1-0-lite-i2v-250428
contentarrayYesMultimodal array: text (required) + image_url (optional for i2v)
ratiostringNo16:9, 4:3, 1:1, 3:4, 9:16, 21:9, adaptive. Default: 16:9
resolutionstringNo480p, 720p, 1080p. Default: 720p
durationintegerNo2–12 seconds. Default: 5
watermarkbooleanNoInclude watermark. Default: false
seedintegerNoRandom seed for reproducibility
camera_fixedbooleanNoFix camera position. Default: false

API Reference

View the interactive API playground for Seedance 1.0 Lite i2v.