Seedance-1-0-Lite-I2v-250428 - Image To Video

Documentation Index

Fetch the complete documentation index at: https://docs.gptproto.com/llms.txt

Use this file to discover all available pages before exploring further.

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Authentication

1. Sign up for a GPTProto account at https://gptproto.com
2. Navigate to the API Keys section in your dashboard
3. Generate a new API key (sk-xxxxx)
4. Copy and securely store your API key For authentication details, please refer to the Authentication section.

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Initiate Request

curl --location --request POST 'https://gptproto.com/api/v3/contents/generations/tasks' \
--header 'Authorization: GPTPROTO_API_KEY' \
--header 'Content-Type: application/json' \
--data-raw '{
    "model": "seedance-1-0-lite-i2v-250428",
    "content": [
        {
            "type": "text",
            "text": "A girl holding a fox opens her eyes and looks gently at the camera. The fox is held affectionately. The camera slowly pulls back as the girl'\''s hair is blown by the wind. Wind sounds can be heard."
        },
        {
            "type": "image_url",
            "image_url": {
                "url": "https://ark-project.tos-cn-beijing.volces.com/doc_image/i2v_foxrgirl.png"
            }
        }
    ],
    "resolution": "720p",
    "ratio": "16:9",
    "duration": 12
}'

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Response Example

{
    "id": "cgt-20251225201056-abc"
}

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Query Result

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Query Result

curl -X GET "https://gptproto.com/api/v3/contents/generations/tasks/{id}" \
  -H "Authorization: GPTPROTO_API_KEY" \
  -H "Content-Type: application/json"

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Response

{
    "id": "cgt-20251225195352-123",
    "model": "doubao-seedance-1-5-pro-251215",
    "status": "succeeded",
    "content": {
        "video_url": "https://example.com/video.mp4"
    },
    "usage": {
        "completion_tokens": 260100,
        "total_tokens": 260100
    },
    "seed": "16108",
    "resolution": "720p",
    "duration": 12,
    "ratio": "16:9",
    "created_at": "1766663633",
    "updated_at": "1766663715",
    "framespersecond": 24
}

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Parameters

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Parameters

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Core Parameters

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Advanced Parameters

Note: Different models may support different parameter options. For more details, please refer to the Model Field Compatibility table.

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Model Field Compatibility

Seedance 1.5 pro, Seedance 1.0 lite default value: 720p Seedance 1.0 pro&pro-fast default value: 1080p

• 480p
• 720p
• 1080p: Not supported in reference image scenario; temporarily not supported by Seedance 1.5 pro

Default for Text-to-Video is generally 16:9 Default for Image-to-Video is generally adaptive. Note: Default for Reference Image Video Generation is 16:9 Seedance 1.5 pro default is adaptive

• 16:9
• 4:3
• 1:1
• 3:4
• 9:16
• 21:9
• adaptive: Automatically selects the most appropriate aspect ratio based on the ratio of the uploaded first frame image.

Seedance 1.5 pro does not support frames temporarily Choose either duration or frames; frames has higher priority than duration. If you want to generate videos with fractional seconds, it is recommended to specify frames.

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Video Generation Scenarios

{
    "content": [
        {
            "type": "text",
            "text": "Multiple shots. A detective enters a dimly lit room. He examines the clues on the table and picks up an item. The camera shifts to him deep in thought. --ratio 16:9"
        }
    ]
}

• You can pass the same image for both first and last frame.
• If the aspect ratios of first and last frame images are inconsistent, the system will prioritize the first frame and automatically crop the last frame to match.

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Aspect Ratio & Resolution

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Text Command Parameters

{
  "content": [
    {
      "type": "text",
      "text": "A kitten yawning at the camera. --rs 720p --rt 16:9 --dur 5 --fps 24 --wm true --seed 11 --cf false"
    }
  ]
}

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Error Codes

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Error Codes

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Common Error Codes