Veo 3.1 Fast · Text to video

← Veo Model name: veo3.1/fast
Generation type: text_to_video
Endpoint: POST /api/asset_generator/

Pricing

Duration	Credits
4s	6.0
6s	9.0
8s	12.0

Prices are per output. When a request asks for several outputs, the charge is this price times the number of outputs.

Quick start

curl --request POST \
  --url https://api.creatify.ai/api/asset_generator/ \
  --header 'Content-Type: application/json' \
  --header 'X-API-ID: your-api-id' \
  --header 'X-API-KEY: your-api-key' \
  --data '{
    "model_name": "veo3.1/fast",
    "input_params": {
      "prompt": "A slow cinematic tracking shot along a sunlit coastal road."
    }
  }'

import requests

response = requests.post(
    "https://api.creatify.ai/api/asset_generator/",
    headers={"X-API-ID": "your-api-id", "X-API-KEY": "your-api-key"},
    json={
        "model_name": "veo3.1/fast",
        "input_params": {
            "prompt": "A slow cinematic tracking shot along a sunlit coastal road."
        },
    },
)
print(response.json()["id"])

Input parameters

Send these fields in input_params.

string

required

The text prompt describing the video you want to generateMinimum characters: 1. Maximum characters: 2000.

integer

The same seed and the same prompt given to the same version of the model will output the same image every time.

string

default:"8s"

The duration of the generated video in secondsAllowed values: "4s", "6s", "8s".

string

default:"720p"

The resolution of the generated videoAllowed values: "720p", "1080p".

string

default:"16:9"

The aspect ratio of the generated video. If it is set to 1:1, the video will be outpainted.Allowed values: "16:9", "9:16".

boolean

default:true

Whether to enhance the video generation

boolean

default:true

Whether to generate audio for the video.

string

A negative prompt to guide the video generation

Complete JSON schema

{
  "allOf": [
    {
      "if": {
        "properties": {
          "resolution": {
            "const": "1080p"
          }
        },
        "required": [
          "resolution"
        ]
      },
      "then": {
        "properties": {
          "aspect_ratio": {
            "enum": [
              "16:9",
              "9:16"
            ]
          }
        },
        "errorMessage": {
          "properties": {
            "aspect_ratio": "1080p with 1:1 aspect ratio is not supported for Veo3. Please select a different aspect ratio or model to continue."
          }
        }
      }
    },
    {
      "if": {
        "properties": {
          "resolution": {
            "const": "1080p"
          }
        },
        "required": [
          "resolution"
        ]
      },
      "then": {
        "properties": {
          "duration": {
            "const": "8s"
          }
        },
        "errorMessage": {
          "properties": {
            "duration": "For 1080p resolution, only 8s duration is supported. Please change the duration or resolution."
          }
        }
      }
    }
  ],
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "prompt"
  ],
  "properties": {
    "seed": {
      "type": "integer",
      "title": "Seed",
      "description": "The same seed and the same prompt given to the same version of the model will output the same image every time.",
      "x-advance-settings": true
    },
    "prompt": {
      "type": "string",
      "title": "Prompt",
      "maxLength": 2000,
      "minLength": 1,
      "description": "The text prompt describing the video you want to generate"
    },
    "duration": {
      "enum": [
        "4s",
        "6s",
        "8s"
      ],
      "type": "string",
      "title": "Duration",
      "default": "8s",
      "description": "The duration of the generated video in seconds"
    },
    "resolution": {
      "enum": [
        "720p",
        "1080p"
      ],
      "type": "string",
      "title": "Resolution",
      "default": "720p",
      "description": "The resolution of the generated video",
      "x-advance-settings": true
    },
    "aspect_ratio": {
      "enum": [
        "16:9",
        "9:16"
      ],
      "type": "string",
      "title": "Aspect Ratio",
      "default": "16:9",
      "description": "The aspect ratio of the generated video. If it is set to 1:1, the video will be outpainted."
    },
    "enhance_prompt": {
      "type": "boolean",
      "title": "Enhance Prompt",
      "default": true,
      "description": "Whether to enhance the video generation"
    },
    "generate_audio": {
      "type": "boolean",
      "title": "Generate Audio",
      "default": true,
      "description": "Whether to generate audio for the video.",
      "x-advance-settings": true
    },
    "negative_prompt": {
      "type": "string",
      "title": "Negative Prompt",
      "description": "A negative prompt to guide the video generation",
      "x-advance-settings": true
    }
  }
}

Response

The request returns the task with status: "initializing". Poll GET /api/asset_generator/{id}/ until status is done or failed, or pass a webhook_url to be notified. A finished task lists its files in assets and the credits it charged in credits_used.

Get Started

URL to Video

Aurora

Boreal

Stock AI Avatar

Custom Avatar

Custom Template

Asset Generator

Ad Clone

Text to Speech

IAB Images

HTML Interactive Ad

Link Parser

AI Ad Script

Stock AI Voice

Stock AI Music

Workspace

AI Shorts (Deprecated)

AI Editing (Deprecated)

Product Video (Deprecated)

Veo 3.1 Fast · Text to video

Pricing

Quick start

Input parameters

Response

​Pricing

​Quick start

​Input parameters

​Response

Pricing

Quick start

Input parameters

Response