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POST
/
veo-3-fast-t2v
/
async
curl --request POST \ --url https://api.modellix.ai/api/v1/google/veo-3-fast-t2v/async \ --header 'Authorization: Bearer <token>' \ --header 'Content-Type: application/json' \ --data ' { "prompt": "Busy city intersection at rush hour with people crossing, warm afternoon light" } '
{
  "code": 0,
  "message": "success",
  "data": {
    "status": "pending",
    "task_id": "task-t2v004",
    "model_id": "google/veo-3-fast-t2v",
    "get_result": {
      "method": "GET",
      "url": "https://api.modellix.ai/api/v1/tasks/task-t2v004"
    }
  }
}

Documentation Index

Fetch the complete documentation index at: https://docs.modellix.ai/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
Authorization
string
header
required

API Key authentication. Format: Bearer YOUR_API_KEY.

Body

application/json

Veo 3 and Veo 3 Fast text-to-video request. Supports prompt, negativePrompt, aspectRatio, durationSeconds, resolution (720p/1080p), and personGeneration.

​
prompt
string
required

Video description text

Minimum string length: 1
Example:

"Northern lights dancing across an arctic sky above a frozen lake"

​
negativePrompt
string

Text describing what to avoid in the generated video.

Example:

"blurry, low quality, distorted"

​
aspectRatio
enum<string>
default:16:9

Video aspect ratio

Available options:
16:9,
9:16
Example:

"16:9"

​
durationSeconds
enum<string>

Video duration in seconds (string type)

Available options:
4,
6,
8
Example:

"6"

​
resolution
enum<string>

Video resolution

Available options:
720p,
1080p
Example:

"720p"

​
personGeneration
enum<string>

Person generation policy

Available options:
allow_all
Example:

"allow_all"

Response

Task submitted successfully

​
code
integer
required

Response code, 0 indicates success

Example:

0

​
message
string
required

Response message

Example:

"success"

​
data
object
required

Detailed data about the submitted asynchronous task.