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POST
/
v1
/
jobs
/
submit
Gen 4
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>",
    "image_url": "<string>",
    "aspect_ratio": "<string>",
    "duration": "<string>"
  }
}
'
{
  "jobId": "<string>",
  "status": "<string>",
  "estimatedCompletionTime": "<string>",
  "costMicroCents": 123
}
Generate videos from images with Runway’s Gen 4 model. Supports image-to-video generation with multiple aspect ratios and duration options.
PropertyValue
ProviderRunway
Slugrunway/gen-4
CapabilitiesImage to Video
Base Cost100,000 micro-cents/second ($0.10/sec)
Processing Time~120 seconds

​
Image to Video

Generate videos from a source image and text prompt. Slug: runway/gen-4/image-to-video

​
Request Body

​
model
string
required
Model slug. Use runway/gen-4/image-to-video for image-to-video generation.
​
input
object
required
Input parameters for image-to-video generation.
​
webhookUrl
string
HTTPS URL to receive a webhook notification when the job completes or fails.

​
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/image-to-video",
    "input": {
      "prompt": "The camera slowly zooms in as the subject turns to face the viewer",
      "image_url": "https://example.com/portrait.jpg",
      "aspect_ratio": "16:9",
      "duration": "5"
    }
  }'

​
Pricing

Base cost: 100,000 micro-cents per second ($0.10/sec) 
finalCost = baseCost × duration
FactorOptionMultiplier
Duration55x
1010x
Default cost: 5 seconds = 100,000 × 5 = 500,000 micro-cents ($0.50)

​
Response

​
jobId
string
Unique identifier for the submitted job.
​
status
string
Initial job status. Always "pending" on successful submission.
​
estimatedCompletionTime
string
ISO 8601 timestamp of the estimated completion time.
​
costMicroCents
number
The cost of the job in micro-cents.