Runway Aleph API
Runway's Gen-4 Aleph — professional AI video generation and editing
Overview
Runway Gen-4 Aleph is a professional-grade AI video generation and editing model. AI Generate provides direct API access with pay-per-second pricing.
All 7 Runway Aleph variants & pricing
Every variant is accessible via the same API endpoint. Switch variants by changing the model parameter. No extra setup.
| Variant | Credits | Price USD | Unit | |
|---|---|---|---|---|
| Runway, image-to-video, 5.0s-720p | 12.00 | $0.0840 | per video | Details → |
| Runway, text-to-video, 5.0s-720p | 12.00 | $0.0840 | per video | Details → |
| Runway, text-to-video, 10.0s-720p | 30.00 | $0.2100 | per video | Details → |
| Runway, text-to-video, 5.0s-1080p | 30.00 | $0.2100 | per video | Details → |
| Runway, image-to-video, 10.0s-720p | 30.00 | $0.2100 | per video | Details → |
| Runway, image-to-video, 5.0s-1080p | 30.00 | $0.2100 | per video | Details → |
| Runway Aleph | 110.00 | $0.7700 | per video | Details → |
Use Runway Aleph via API
Example call with the default variant. Replace model with any slug from the table above.
curl https://aimarcusimage.eu/api/v1/jobs/createTask \
-H "Authorization: Bearer sk-aig-..." \
-H "Content-Type: application/json" \
-d '{
"model": "runway-runway-image-to-video-5-0s-720p",
"input": {
"prompt": "a golden retriever running through autumn leaves, cinematic",
"aspect_ratio": "16:9",
"duration": 5
}
}'
FAQ
How much does Runway Aleph cost?
Pricing starts at $0.0840 per video for the most affordable variant. You pay per call from your credit balance — no monthly subscription, no minimum commitment. First $10 on signup are free.
Is this an official Runway API?
AI Generate is an AI model aggregator that routes calls to Runway's upstream API. You get the exact same model outputs with simpler billing (pay per call, no contracts), one API key for 288 models, and the same OpenAI-compatible request shape across all providers.
Can I use Runway Aleph in production?
Yes. The endpoint is rate-limited to 20 requests per 10 seconds per API key, retries are idempotent via taskId, and async results are delivered via polling or webhook. Set a spend cap in dashboard settings to protect against runaway usage.
Which Runway Aleph variant should I pick?
For first tests, start with the cheapest variant (lowest "Price USD" in the table above). Upgrade to higher-resolution or "Quality" tiers only when you have validated prompts. The Playground (free) lets you A/B test all variants before spending credits.