Gen 4.5 — Image 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": {
    "image_url": "<string>",
    "prompt": "<string>",
    "aspect_ratio": "<string>",
    "duration": "<string>"
  }
}
'

import requests

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

payload = {
    "model": "<string>",
    "input": {
        "image_url": "<string>",
        "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: {
      image_url: '<string>',
      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 — Image 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": {
    "image_url": "<string>",
    "prompt": "<string>",
    "aspect_ratio": "<string>",
    "duration": "<string>"
  }
}
'

import requests

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

payload = {
    "model": "<string>",
    "input": {
        "image_url": "<string>",
        "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: {
      image_url: '<string>',
      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 a source image and text prompt 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	Image 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/image-to-video for image-to-video generation.

object

required

Input parameters for image-to-video generation.

Hide properties

string

required

URL of the source image to animate.

string

Text description to guide video generation (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/image-to-video",
    "input": {
      "image_url": "https://example.com/beach.jpg",
      "prompt": "The waves crash gently as the camera slowly pans across the shoreline",
      "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/image-to-video",
        "input": {
            "image_url": "https://example.com/beach.jpg",
            "prompt": "The waves crash gently as the camera slowly pans across the shoreline",
            "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/image-to-video",
    input: {
      image_url: "https://example.com/beach.jpg",
      prompt: "The waves crash gently as the camera slowly pans across the shoreline",
      aspect_ratio: "16:9",
      duration: "5"
    }
  })
});

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

Gen 4.5 — Text to Video Gen 4

Google

OpenAI

Runway

Kling

Kling Plus

Alibaba

Alibaba Plus

ByteDance

ByteDance Plus

MiniMax Plus

xAI

Gen 4.5 — Image to Video

Request Body

Pricing

Response

Code Examples

​Request Body

​Pricing

​Response

​Code Examples

Request Body

Pricing

Response

Code Examples