Video Extensions

curl --request POST \
  --url https://zx1.deepwl.net/v1/videos/extensions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "<string>",
  "prompt": "<string>",
  "video": {},
  "video.url": "<string>",
  "start_time": 123,
  "duration": 123
}
'

import requests

url = "https://zx1.deepwl.net/v1/videos/extensions"

payload = {
    "model": "<string>",
    "prompt": "<string>",
    "video": {},
    "video.url": "<string>",
    "start_time": 123,
    "duration": 123
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: '<string>',
    prompt: '<string>',
    video: {},
    'video.url': '<string>',
    start_time: 123,
    duration: 123
  })
};

fetch('https://zx1.deepwl.net/v1/videos/extensions', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://zx1.deepwl.net/v1/videos/extensions",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'model' => '<string>',
    'prompt' => '<string>',
    'video' => [
        
    ],
    'video.url' => '<string>',
    'start_time' => 123,
    'duration' => 123
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://zx1.deepwl.net/v1/videos/extensions"

	payload := strings.NewReader("{\n  \"model\": \"<string>\",\n  \"prompt\": \"<string>\",\n  \"video\": {},\n  \"video.url\": \"<string>\",\n  \"start_time\": 123,\n  \"duration\": 123\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://zx1.deepwl.net/v1/videos/extensions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"<string>\",\n  \"prompt\": \"<string>\",\n  \"video\": {},\n  \"video.url\": \"<string>\",\n  \"start_time\": 123,\n  \"duration\": 123\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://zx1.deepwl.net/v1/videos/extensions")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"model\": \"<string>\",\n  \"prompt\": \"<string>\",\n  \"video\": {},\n  \"video.url\": \"<string>\",\n  \"start_time\": 123,\n  \"duration\": 123\n}"

response = http.request(request)
puts response.read_body

{
  "id": "grok:48a67431-0708-46d1-9ab9-83cb84700153",
  "status": "processing",
  "status_update_time": 1762685256
}

POST

https://zx1.deepwl.net

videos

extensions

Video Extensions

curl --request POST \
  --url https://zx1.deepwl.net/v1/videos/extensions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "<string>",
  "prompt": "<string>",
  "video": {},
  "video.url": "<string>",
  "start_time": 123,
  "duration": 123
}
'

import requests

url = "https://zx1.deepwl.net/v1/videos/extensions"

payload = {
    "model": "<string>",
    "prompt": "<string>",
    "video": {},
    "video.url": "<string>",
    "start_time": 123,
    "duration": 123
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: '<string>',
    prompt: '<string>',
    video: {},
    'video.url': '<string>',
    start_time: 123,
    duration: 123
  })
};

fetch('https://zx1.deepwl.net/v1/videos/extensions', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://zx1.deepwl.net/v1/videos/extensions",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'model' => '<string>',
    'prompt' => '<string>',
    'video' => [
        
    ],
    'video.url' => '<string>',
    'start_time' => 123,
    'duration' => 123
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://zx1.deepwl.net/v1/videos/extensions"

	payload := strings.NewReader("{\n  \"model\": \"<string>\",\n  \"prompt\": \"<string>\",\n  \"video\": {},\n  \"video.url\": \"<string>\",\n  \"start_time\": 123,\n  \"duration\": 123\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://zx1.deepwl.net/v1/videos/extensions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"<string>\",\n  \"prompt\": \"<string>\",\n  \"video\": {},\n  \"video.url\": \"<string>\",\n  \"start_time\": 123,\n  \"duration\": 123\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://zx1.deepwl.net/v1/videos/extensions")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"model\": \"<string>\",\n  \"prompt\": \"<string>\",\n  \"video\": {},\n  \"video.url\": \"<string>\",\n  \"start_time\": 123,\n  \"duration\": 123\n}"

response = http.request(request)
puts response.read_body

{
  "id": "grok:48a67431-0708-46d1-9ab9-83cb84700153",
  "status": "processing",
  "status_update_time": 1762685256
}

Video Extensions

In the Grok unified video pipeline, segment extension is still submitted through POST /v1/videos/extensions (the same path as OpenAI-format Video Extensions), with the original task ID passed in video.url in the body.

The route entry is POST /v1/videos/extensions.
model, prompt, video, and start_time are required.
Set video.url to the original task ID, for example grok:f673ba58-b053-4d8d-8938-c0b429de4d7f.
After a successful submission, use Query Task to poll for results.

Method and Path

POST /v1/videos/extensions

Request Example

curl -X POST https://zx1.deepwl.net/v1/videos/extensions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json" \
  -d '{
    "model": "grok-video-3",
    "prompt": "play with another white cat",
    "duration": 6,
    "start_time": 4,
    "video": {
      "url": "grok:f673ba58-b053-4d8d-8938-c0b429de4d7f"
    }
  }'

import requests

resp = requests.post(
    "https://zx1.deepwl.net/v1/videos/extensions",
    headers={
        "Authorization": "Bearer YOUR_API_KEY",
        "Content-Type": "application/json",
        "Accept": "application/json",
    },
    json={
        "model": "grok-video-3",
        "prompt": "play with another white cat",
        "duration": 6,
        "start_time": 4,
        "video": {"url": "grok:f673ba58-b053-4d8d-8938-c0b429de4d7f"},
    },
    timeout=60,
)
print(resp.json())

const response = await fetch("https://zx1.deepwl.net/v1/videos/extensions", {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
    Accept: "application/json",
  },
  body: JSON.stringify({
    model: "grok-video-3",
    prompt: "play with another white cat",
    duration: 6,
    start_time: 4,
    video: { url: "grok:f673ba58-b053-4d8d-8938-c0b429de4d7f" },
  }),
});

console.log(await response.json());

Response Example

{
  "id": "grok:48a67431-0708-46d1-9ab9-83cb84700153",
  "status": "processing",
  "status_update_time": 1762685256
}

Authentication

Authorization: Bearer YOUR_API_KEY

Body

string

required

Model name, for example grok-video-3.

string

required

Prompt for the extension segment.

object

required

Reference to the original video, which must include the url field.

string

required

Original video task ID, the same as the id returned by unified Create Video.

integer

required

Segment start time (seconds).

integer

Target extension duration (seconds). Defaults to 10, supports 6, 10, and 15.

Response

string

New extensions task ID.

string

Task status, common values include processing, completed, and failed.

integer

Most recent status update time (Unix timestamp).

Difference Between Extend and Extensions Under Unified Video

Item	Video Extend	Video Extensions
Path	`POST /v1/video/extend`	`POST /v1/videos/extensions`
Original task ID	Body `task_id`	Body `video.url`
Query	Query Task	Query Task

Overview

Text Models

Image Models

Video Models

Uploads

Tasks

Account

Video Extensions

Video Extensions

Method and Path

Request Example

Response Example

Authentication

Body

Response

Difference Between Extend and Extensions Under Unified Video

​Video Extensions

​Method and Path

​Request Example

​Response Example

​Authentication

​Body

​Response

​Difference Between Extend and Extensions Under Unified Video

​Related APIs

Video Extensions

Method and Path

Request Example

Response Example

Authentication

Body

Response

Difference Between Extend and Extensions Under Unified Video

Related APIs