Vidu 1.5 I2V Reference

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: vidu15_i2v_reference

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prompt string required

Text prompt, can use @subject_id to reference subject content. Max 2000 characters.

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images array required

Reference image URLs. Supports 1-3 images.

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duration integer

Video duration in seconds.

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resolution string

Video resolution.

Options: 360p, 720p, 1080p for 4s; 720p for 8s

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voice_id string

Voice ID for audio. Leave empty for auto-recommended voice.

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audio boolean

Enable audio-video output capability.

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seed integer

Random seed for reproducibility.

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aspect_ratio string

Video aspect ratio.

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movement_amplitude string

Movement amplitude of objects in frame.

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