Runway Aleph 2 API
Runway Aleph 2 from $0.59/sec — the premium Runway tier with eight aspect ratios.
Runway's premium Aleph 2 model. Five-second clips with the widest aspect-ratio range in Runway's lineup — eight options from 21:9 to 9:16 — from $0.59 per second.
No credit card required. Takes 30 seconds.
Runway Aleph 2 API pricing
Pay per request from your YepAPI balance — no subscription, no monthly minimum. Prices updated July 31, 2026.
| Billing | Price |
|---|---|
| Rate | $0.59/sec |
| What it costs | Per job |
|---|---|
| 5-second clipfrom lowest resolution | $2.95 |
| 10-second clipfrom lowest resolution | $5.90 |
| 100 × 5-second clipsan ad-creative batch | $295.00 |
2,400+
Developers
1.2M+
API calls served
100+
Endpoints
$0.01
Per call
Yep, that's it.
Try it live
Enter a prompt and generate a video with Runway Aleph 2.
Runway Aleph 2 specs
| Provider | Runway |
|---|---|
| Model ID | runway/aleph-2 |
| Endpoint | /v1/media/queue |
| Type | Video Generation |
| Aspect ratios | 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, 21:9 |
| Durations | 5 seconds |
How to get a Runway Aleph 2 API key
- 1
Create a free account
Sign up at yepapi.com with Google or email. It takes about 30 seconds and needs no card.
- 2
Create an API key
Open the dashboard, go to API Keys and create a key. Copy it — it starts with yep_sk_.
- 3
Call Runway Aleph 2
Send a request to /v1/media/queue with the x-api-key header and model "runway/aleph-2".
- 4
Pay as you go
Usage is billed per request from your balance. Top up any amount; there is no subscription.
Strengths
Aleph 2 is Runway's high-end model, aimed at shots where fidelity matters more than cost per second.
From 21:9 cinematic through 3:2, 1:1, and 9:16 vertical — more framing control than Gen-4.5.
A fixed 5-second length suits hero shots and inserts that get cut into a longer edit.
Per-second billing from a prepaid balance instead of a monthly plan.
Quick start
Copy this snippet and start making calls with Runway Aleph 2.
// Step 1: Submit job
const res = await fetch('https://api.yepapi.com/v1/media/queue', {
method: 'POST',
headers: {
'x-api-key': 'YOUR_API_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
"model": "runway/aleph-2",
"prompt": "A macro shot of ink dispersing through water in slow motion, indigo tendrils curling against a pale backdrop, high-key lighting",
"options": {
"aspectRatio": "16:9",
"resolution": "1080p",
"duration": "6"
}
}),
});
const { data } = await res.json();
const jobId = data.jobId;
// Step 2: Poll for result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${jobId}`, {
headers: { 'x-api-key': 'YOUR_API_KEY' },
});
const { data: job } = await status.json();
// job.status: "pending" | "processing" | "completed" | "failed"
// job.result: { text?, image?, audio?, video? }Runway Aleph 2 vs similar models
Every model below runs on the same API key — switch by changing the model ID.
| Model | Provider | Price |
|---|---|---|
| Runway Aleph 2 | Runway | from $0.59/sec |
| Runway Gen-4.5 | Runway | from $0.25/sec (720p) |
| Seedance 1.0 Pro Fast | ByteDance | from about $0.02/sec (480p), about $0.04/sec (720p), about $0.10/sec (1080p) |
| Grok Imagine Video 1.5 Lite | xAI | from $0.04/sec (480p) |
| HeyGen Video | HeyGen | from $0.04/sec (480p) |
| Seedance 1.0 Pro | ByteDance | from about $0.05/sec (480p), about $0.10/sec (720p), about $0.24/sec (1080p) |
| Seedance 2.0 Mini | ByteDance | from about $0.07/sec (480p) |
| Wan 2.6 | Alibaba | from $0.08/sec (480p), $0.17/sec (720p), $0.25/sec (1080p) |
Why use Runway Aleph 2 through YepAPI?
Runway Aleph 2 API — premium AI video generation
Aleph 2 is Runway's premium video model, generating focused five-second shots across eight aspect ratios from 21:9 to 9:16 — the widest framing range in Runway's lineup.
On YepAPI it is one `POST /v1/media/queue` call away, billed per second from $0.59 with no Runway subscription attached.
Start generating in 30 seconds
$5 free credit on signup. No credit card required. Pay per call.
What developers say
“Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.”
“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”
“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”
Frequently asked questions
Runway's premium Aleph 2 model. Five-second clips with the widest aspect-ratio range in Runway's lineup — eight options from 21:9 to 9:16 — from $0.59 per second.
Runway Aleph 2 costs from $0.59/sec through YepAPI, billed per request with no monthly fee. For example, a 5-second clip (from lowest resolution) costs about $2.95.
Sign up at yepapi.com (Google or email, about 30 seconds), open the dashboard and create an API key. The same key works for Runway Aleph 2 and every other model — no separate Runway account or waitlist.
New YepAPI accounts in most countries get free signup credit, enough to test Runway Aleph 2 without a card. After that you pay per request at the rates above — there is no subscription.
Use "runway/aleph-2" as the model on /v1/media/queue. The short alias "aleph" also works.
Ready to use Runway Aleph 2?
$5 free credit on signup. No credit card required. Pay per call.
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