Runway Aleph 2

POST/v1/media/queue

from $0.59/second

Overview

Runway's Aleph 2 — high-end 5-second video clips across 8 aspect ratios. Async operation — submit a job, poll for completion.

Property	Value
Model ID	`runway/aleph-2`
Provider	Runway
Aspect Ratios	16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, 21:9
Duration	5 seconds
Audio Generation	Not supported
Billing	Dynamic (actual cost per job)
Pricing	from $0.59/second

Usage

All media models use the async job queue. Submit a job, then poll for the result.

Step 1: Submit Job

Text-to-Video

const res = await fetch('https://api.yepapi.com/v1/media/queue', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    model: 'runway/aleph-2',
    prompt: 'A cinematic drone shot over a rugged coastline at golden hour',
    options: {
      aspectRatio: '16:9',
      duration: '5',
    },
  }),
});
const { data } = await res.json();
// data.jobId — use this to poll for results

curl -X POST https://api.yepapi.com/v1/media/queue \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "runway/aleph-2", "prompt": "A cinematic drone shot over a rugged coastline", "options": {"aspectRatio": "16:9", "duration": "5"}}'

Step 2: Poll for Result

const status = await fetch(`https://api.yepapi.com/v1/media/status/${data.jobId}`, {
  headers: { 'x-api-key': 'YOUR_API_KEY' },
});
const { data: job } = await status.json();
// job.status — "pending" | "processing" | "completed" | "failed"
// job.result.video — { mimeType, base64 } when completed

curl https://api.yepapi.com/v1/media/status/JOB_ID \
  -H "x-api-key: YOUR_API_KEY"

Request Body

Parameter	Type	Required	Description	Default
`model`	`string`	Yes	`runway/aleph-2` or alias `aleph`	—
`prompt`	`string`	Yes	Text description of the video to generate	—
`options.aspectRatio`	`string`	No	One of: 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, 21:9	`16:9`
`options.duration`	`string`	No	`5` (seconds)	`5`

Pricing

Tier	Cost/sec
All resolutions	$0.59

Example: 5-second video ≈ 5 x $0.59 = $2.95. Billing is dynamic — each job is billed from the actual cost of the finished video, so shorter or lower-resolution jobs cost less.

Info

Video jobs can take several minutes to complete. Results retained for 1 hour.

Under the Hood