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RunwayVideo Generation/v1/media/queue

Runway Gen-4.5

Runway Gen-4.5 from $0.25/sec — cinematic AI video via REST, billed per second with no monthly plan.

Runway's Gen-4.5 video model. Cinematic 2–10 second clips at 720p in 16:9 or 9:16 with first-frame image-to-video — from $0.25 per second, no subscription.

No credit card required. Takes 30 seconds.

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 Gen-4.5.

POST/v1/media/queue

Drop image or click to upload

For image-to-video (first/last frame)

Response
Hit "Send Request" to see the response

Pricing

Per-second: from $0.25/sec (720p)

Endpoint

/v1/media/queue

Strengths

Runway's signature look

Gen-4.5 carries the cinematic camera language and color that made Runway a staple in film and ad workflows.

Clips from 2 seconds

Nine duration options starting at 2 seconds, useful for stingers, loops, and transitions where longer generations are wasted spend.

Image-to-video

Animate a still by passing it as the first frame — turn key art or a product shot into motion.

No subscription

Pay per second from a prepaid balance instead of a monthly Runway plan with generation credits.

Quick start

Copy this snippet and start making calls with Runway Gen-4.5.

// 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/gen-4.5",
    "prompt": "A slow dolly through an abandoned greenhouse at golden hour, dust motes suspended in the light, ivy pushing through broken panes, shallow depth of field",
    "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? }

Why use Runway Gen-4.5 through YepAPI?

One API key for all models — no separate accounts
No monthly minimums — pay per call
Switch models with one line of code
Simple REST API — works from any language
Unified billing across all providers
No rate limits for most use cases

Runway Gen-4.5 API — cinematic video from $0.25/sec

Runway Gen-4.5 generates 2 to 10 second clips at 720p in 16:9 or 9:16, with the cinematic motion and camera work Runway is known for. First-frame conditioning turns a still image into a moving shot.

Through YepAPI you get it as a plain REST call on `/v1/media/queue` with per-second billing from $0.25 — no monthly subscription, no credit packs, no seat licenses.

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.

Marcus T.

SEO Platform Founder

One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.

Priya S.

Full-Stack Developer

The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.

Jake R.

Indie Hacker

Frequently asked questions

Runway's Gen-4.5 video model. Cinematic 2–10 second clips at 720p in 16:9 or 9:16 with first-frame image-to-video — from $0.25 per second, no subscription.

Pricing for Runway Gen-4.5 through YepAPI is based on usage. No monthly minimums — you only pay for what you use.

Sign up for a free API key, then send requests to the /v1/media/queue endpoint.

Ready to use Runway Gen-4.5?

$5 free credit on signup. No credit card required. Pay per call.

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