Ultra I2V Master 2.1

ultra_i2v_master_2_1

Cinema-grade image-to-video generation delivering professional-level motion quality and consistency.

Authentication

authorization `string` required

All APIs require authentication via Bearer Token.

Get API Key:

Visit API Key Management Page to get your API Key

Usage:

Add to request header:

Authorization: Bearer YOUR_API_KEY

Parameters

model `string` required

Model ID to use for the request.

Value: ultra_i2v_master_2_1

image `string` required

Input image URL.

prompt `string`

Video generation prompt, length must be 1-2500 characters.

mode `string`

Generation mode.

Options: std (standard), pro (professional)

aspect_ratio `string`

Video aspect ratio.

Options: 16:9, 9:16, 1:1

camera_control `object`

Camera motion control parameter.

image_tail `string`

End frame image.

Error Codes

Code	Description
401	API key is missing or invalid
403	Insufficient balance or permission denied
429	Rate limit exceeded
500	Internal server error

Code Examples

curl --location 'https://cloud.vtrix.ai/model/v1/generation' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer YOUR_API_KEY' \
--data '{
  "model": "ultra_i2v_master_2_1",
  "input": [
    {
      "params": {
        "image": "https://example.com/image.jpg",
        "prompt": "A cinematic scene",
        "mode": "std",
        "aspect_ratio": "16:9"
      }
    }
  ]
}'

Response Format

{
  "type": "video",
  "url": "Generated content URL",
  "jobId": "Job identifier"
}

Authentication

authorization string required

Parameters

model string required

image string required

prompt string

mode string

aspect_ratio string

camera_control object

image_tail string