seedance-1-0-lite-t2v-250428 (Text to Video)

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API Key Authentication

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Getting Your API Key

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
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-t2v-250428",
    "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."
        }
    ],
    "resolution": "720p",
    "ratio": "16:9",
    "duration": 12
}'

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Response Example

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

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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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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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Common Error Codes