Gen 4.5 — Text to Video

curl --request POST \
  --url https://api.muvi.video/v1/jobs/submit \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "<string>",
  "input": {
    "prompt": "<string>",
    "aspect_ratio": "<string>",
    "duration": "<string>"
  }
}
'

import requests

url = "https://api.muvi.video/v1/jobs/submit"

payload = {
    "model": "<string>",
    "input": {
        "prompt": "<string>",
        "aspect_ratio": "<string>",
        "duration": "<string>"
    }
}
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>',
    input: {prompt: '<string>', aspect_ratio: '<string>', duration: '<string>'}
  })
};

fetch('https://api.muvi.video/v1/jobs/submit', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "jobId": "<string>",
  "status": "<string>",
  "estimatedCompletionTime": "<string>",
  "costMicroCents": 123
}

POST

jobs

submit

Gen 4.5 — Text to Video

curl --request POST \
  --url https://api.muvi.video/v1/jobs/submit \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "<string>",
  "input": {
    "prompt": "<string>",
    "aspect_ratio": "<string>",
    "duration": "<string>"
  }
}
'

import requests

url = "https://api.muvi.video/v1/jobs/submit"

payload = {
    "model": "<string>",
    "input": {
        "prompt": "<string>",
        "aspect_ratio": "<string>",
        "duration": "<string>"
    }
}
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>',
    input: {prompt: '<string>', aspect_ratio: '<string>', duration: '<string>'}
  })
};

fetch('https://api.muvi.video/v1/jobs/submit', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "jobId": "<string>",
  "status": "<string>",
  "estimatedCompletionTime": "<string>",
  "costMicroCents": 123
}

Generate high-quality videos from text descriptions with Runway’s Gen 4.5 model. Supports flexible duration options up to 10 seconds and multiple aspect ratios.

Property	Value
Provider	Runway
Model	Gen 4.5
Capability	Text to Video
Base Cost	120,000 micro-cents/second ($0.12/sec)
Processing Time	~180 seconds

Request Body

string

required

Model slug. Use runway/gen-4.5/text-to-video for text-to-video generation.

object

required

Input parameters for text-to-video generation.

Hide properties

string

required

Text description of the video to generate (max 5000 characters).

string

Video aspect ratio. Default: 16:9. Options: 16:9, 9:16, 1:1, 4:3, 3:4, 21:9.

string

Video duration in seconds. Default: 5. Options: 2, 3, 4, 5, 6, 7, 8, 9, 10.

string

HTTPS URL to receive a webhook notification when the job completes or fails.

Pricing

Base cost: 120,000 micro-cents per second ($0.12/sec)

finalCost = baseCost × duration

Factor	Option	Multiplier
Duration	`2`	2x
	`3`	3x
	`4`	4x
	`5`	5x
	`6`	6x
	`7`	7x
	`8`	8x
	`9`	9x
	`10`	10x

Default cost: 5 seconds = 120,000 × 5 = 600,000 micro-cents ($0.60)

Response

string

Unique identifier for the submitted job.

string

Initial job status. Always "pending" on successful submission.

string

ISO 8601 timestamp of the estimated completion time.

number

The cost of the job in micro-cents.

Code Examples

curl -X POST https://api.muvi.video/v1/jobs/submit \
  -H "Authorization: Bearer $PIXELBYTE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "runway/gen-4.5/text-to-video",
    "input": {
      "prompt": "A drone shot flying over a tropical beach at sunset with waves crashing on the shore",
      "aspect_ratio": "16:9",
      "duration": "5"
    }
  }'

import requests

response = requests.post(
    "https://api.muvi.video/v1/jobs/submit",
    headers={
        "Authorization": "Bearer YOUR_API_KEY",
        "Content-Type": "application/json"
    },
    json={
        "model": "runway/gen-4.5/text-to-video",
        "input": {
            "prompt": "A drone shot flying over a tropical beach at sunset with waves crashing on the shore",
            "aspect_ratio": "16:9",
            "duration": "5"
        }
    }
)

data = response.json()
print(data)

const response = await fetch("https://api.muvi.video/v1/jobs/submit", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    model: "runway/gen-4.5/text-to-video",
    input: {
      prompt: "A drone shot flying over a tropical beach at sunset with waves crashing on the shore",
      aspect_ratio: "16:9",
      duration: "5"
    }
  })
});

const data = await response.json();
console.log(data);

Sora 2 Pro — Image to Video Gen 4.5 — Image to Video

Google

OpenAI

Runway

Kling

Kling Plus

Alibaba

Alibaba Plus

ByteDance

ByteDance Plus

MiniMax Plus

xAI

Gen 4.5 — Text to Video

Request Body

Pricing

Response

Code Examples

​Request Body

​Pricing

​Response

​Code Examples

Request Body

Pricing

Response

Code Examples