GoogleMediumHigh

Google Veo 3.1 Fast

Fast version of Veo 3.1 with audio generation, optimized for speed while maintaining high quality output.

1800 credits

per video

Faster generation than Veo 3.1

Built-in audio generation

High-quality output

Image-to-video support

Multiple aspect ratios

Use with AI Assistant

Copy usage instructions for Claude, ChatGPT, or other AI

llms.txt

Quick Start

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "google/veo-3.1-fast",
  "input": {
    "prompt": "Colorful street food being prepared at a night market, sizzling sounds, vibrant neon lights, handheld camera feel",
    "duration": "5",
    "aspect_ratio": "9:16",
    "generate_audio": true
  }
}'

Parameters

Parameter	Type	Required	Default	Description
`prompt`	string	Yes	-	Text description of the video to generate
`image`	string	No	-	Start frame image URL
`duration`	integer	No	8	Video duration in seconds (5 or 8) 58
`aspect_ratio`	string	No	16:9	Output aspect ratio 16:99:161:1
`generate_audio`	boolean	No	true	Enable built-in audio generation

Common Parameters

Common parameters used when calling POST /v1/predictions.

Parameter	Type	Required	Default	Description
`model`	string	Yes	-	Model identifier
`input`	object	Yes	-	Object containing the model-specific parameters from the table above
`output_folder`	string	No	-	Folder path for output files (max 256 chars, '..' not allowed)
`webhook_url`	string	No	-	Webhook URL to call on completion
`is_public`	boolean	No	false	If true, output files are also available via permanent public URLs

Examples

Quick Social Clip

Fast social media video with audio

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "google/veo-3.1-fast",
  "input": {
    "prompt": "Colorful street food being prepared at a night market, sizzling sounds, vibrant neon lights, handheld camera feel",
    "duration": "5",
    "aspect_ratio": "9:16",
    "generate_audio": true
  }
}'