Submit Runway Gen-4.5 Task
curl --request POST \
--url https://api.vidgo.ai/api/generate/submit \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "runway-gen-4.5",
"callback_url": "https://your-domain.com/callback",
"input": {
"prompt": "A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.",
"duration": 5,
"aspect_ratio": "16:9"
}
}
'import requests
url = "https://api.vidgo.ai/api/generate/submit"
payload = {
"model": "runway-gen-4.5",
"callback_url": "https://your-domain.com/callback",
"input": {
"prompt": "A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.",
"duration": 5,
"aspect_ratio": "16:9"
}
}
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: 'runway-gen-4.5',
callback_url: 'https://your-domain.com/callback',
input: {
prompt: 'A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.',
duration: 5,
aspect_ratio: '16:9'
}
})
};
fetch('https://api.vidgo.ai/api/generate/submit', 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://api.vidgo.ai/api/generate/submit",
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' => 'runway-gen-4.5',
'callback_url' => 'https://your-domain.com/callback',
'input' => [
'prompt' => 'A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.',
'duration' => 5,
'aspect_ratio' => '16:9'
]
]),
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://api.vidgo.ai/api/generate/submit"
payload := strings.NewReader("{\n \"model\": \"runway-gen-4.5\",\n \"callback_url\": \"https://your-domain.com/callback\",\n \"input\": {\n \"prompt\": \"A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.\",\n \"duration\": 5,\n \"aspect_ratio\": \"16:9\"\n }\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://api.vidgo.ai/api/generate/submit")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"model\": \"runway-gen-4.5\",\n \"callback_url\": \"https://your-domain.com/callback\",\n \"input\": {\n \"prompt\": \"A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.\",\n \"duration\": 5,\n \"aspect_ratio\": \"16:9\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.vidgo.ai/api/generate/submit")
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\": \"runway-gen-4.5\",\n \"callback_url\": \"https://your-domain.com/callback\",\n \"input\": {\n \"prompt\": \"A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.\",\n \"duration\": 5,\n \"aspect_ratio\": \"16:9\"\n }\n}"
response = http.request(request)
puts response.read_body{
"code": 200,
"data": {
"task_id": "task-unified-1757165031-uyujaw3d",
"status": "not_started",
"created_time": "2025-11-12T10:30:00"
}
}Runway
Runway Gen-4.5
Video generation with optional reference image, 5s and 10s durations
POST
/
api
/
generate
/
submit
Submit Runway Gen-4.5 Task
curl --request POST \
--url https://api.vidgo.ai/api/generate/submit \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "runway-gen-4.5",
"callback_url": "https://your-domain.com/callback",
"input": {
"prompt": "A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.",
"duration": 5,
"aspect_ratio": "16:9"
}
}
'import requests
url = "https://api.vidgo.ai/api/generate/submit"
payload = {
"model": "runway-gen-4.5",
"callback_url": "https://your-domain.com/callback",
"input": {
"prompt": "A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.",
"duration": 5,
"aspect_ratio": "16:9"
}
}
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: 'runway-gen-4.5',
callback_url: 'https://your-domain.com/callback',
input: {
prompt: 'A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.',
duration: 5,
aspect_ratio: '16:9'
}
})
};
fetch('https://api.vidgo.ai/api/generate/submit', 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://api.vidgo.ai/api/generate/submit",
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' => 'runway-gen-4.5',
'callback_url' => 'https://your-domain.com/callback',
'input' => [
'prompt' => 'A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.',
'duration' => 5,
'aspect_ratio' => '16:9'
]
]),
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://api.vidgo.ai/api/generate/submit"
payload := strings.NewReader("{\n \"model\": \"runway-gen-4.5\",\n \"callback_url\": \"https://your-domain.com/callback\",\n \"input\": {\n \"prompt\": \"A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.\",\n \"duration\": 5,\n \"aspect_ratio\": \"16:9\"\n }\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://api.vidgo.ai/api/generate/submit")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"model\": \"runway-gen-4.5\",\n \"callback_url\": \"https://your-domain.com/callback\",\n \"input\": {\n \"prompt\": \"A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.\",\n \"duration\": 5,\n \"aspect_ratio\": \"16:9\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.vidgo.ai/api/generate/submit")
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\": \"runway-gen-4.5\",\n \"callback_url\": \"https://your-domain.com/callback\",\n \"input\": {\n \"prompt\": \"A dense, verdant jungle world made up of small lego-like pieces. We see a rainbow chameleon running through the 3D world, the camera in and out of focus.\",\n \"duration\": 5,\n \"aspect_ratio\": \"16:9\"\n }\n}"
response = http.request(request)
puts response.read_body{
"code": 200,
"data": {
"task_id": "task-unified-1757165031-uyujaw3d",
"status": "not_started",
"created_time": "2025-11-12T10:30:00"
}
}- After submission, a
task_idwill be returned. If you provided acallback_url, when the task status becomesfinishedorfailed, a POST request will be sent to thecallback_url. - Regardless of whether
callback_urlis provided, you can retrieve the result through the unified Query Task Status endpoint.
Runway Gen-4.5
runway-gen-4.5 is exposed through the unified submit endpoint with text-to-video and optional single-image guidance.
Available Model
- runway-gen-4.5 - Text-to-video generation
Required Parameters
- prompt: Text prompt for generation
Optional Parameters
- duration:
5or10. Default is5 - aspect_ratio:
16:9,9:16,4:3,3:4,1:1, or21:9. Default is16:9 - image_urls: Optional image URL list. At most
1image - seed: Optional integer seed
Notes
image_urlsis optional. If provided, only one image URL is allowed
Authorizations
All API endpoints require Bearer Token authentication
Get your API Key:
Visit the API Key Management Page to get your API Key
Add it to the request header:
Authorization: Bearer YOUR_API_KEY
Body
application/json
⌘I