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POST
/
v1
/
videos
/
{video_id}
/
extend
curl --request POST \
  --url https://toapis.com/v1/videos/video_abc123def456/extend \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "grok-video-3",
    "prompt": "Continue the scene, make the dog run towards the horizon"
  }'

{
  "id": "video_extend_abc123",
  "object": "generation.task",
  "model": "grok-video-3",
  "status": "queued",
  "progress": 0,
  "created_at": 1768380224,
  "metadata": {}
}
  • Grok Video extend feature
  • Extend the duration of existing videos
  • Async task management, query results via task ID

​
Path Parameters

​
video_id
string
required
Original video task IDThis is the task ID returned from a previous video generation request

​
Authorizations

​
Authorization
string
required
All API requests require Bearer Token authenticationGet API Key: Visit the API Key Management Page to obtain your API KeyAdd to request headers:
Authorization: Bearer YOUR_API_KEY

​
Body

​
model
string
default:"grok-video-3"
required
Video extend model nameExample: "grok-video-3"
​
prompt
string
required
Text description for video extension
​
size
string
Video size

​
Response

​
id
string
Unique task identifier for querying task status
​
object
string
Object type, always generation.task
​
model
string
Model name used
​
status
string
Task status
  • queued - Waiting to be processed
  • in_progress - Processing
  • completed - Successfully completed
  • failed - Failed
​
progress
integer
Task progress percentage (0-100)
​
created_at
integer
Task creation timestamp (Unix timestamp)
​
metadata
object
Task metadata
curl --request POST \
  --url https://toapis.com/v1/videos/video_abc123def456/extend \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "grok-video-3",
    "prompt": "Continue the scene, make the dog run towards the horizon"
  }'

{
  "id": "video_extend_abc123",
  "object": "generation.task",
  "model": "grok-video-3",
  "status": "queued",
  "progress": 0,
  "created_at": 1768380224,
  "metadata": {}
}