Runway, extend-ai-video, 720p
Overview
Runway, extend-ai-video, 720p is a video-generation model from Runway, available through the AI Generate API. You call it with the same Bearer token and the same create-task request as every other model in the catalog, so no provider SDK is needed. Price: $0.0840 per video, charged per use from your credit balance.
Use via API
curl https://aimarcusimage.eu/api/v1/jobs/createTask \
-H "Authorization: Bearer sk-aig-..." \
-H "Content-Type: application/json" \
-d '{
"model": "runway-runway-extend-ai-video-720p",
"input": {
"prompt": "a golden retriever running through autumn leaves, cinematic",
"quality": "720p"
}
}'
Async jobs (video, image, music) return a taskId. Poll /api/v1/jobs/recordInfo?taskId=... or pass a webhook URL to receive the result links.
Prompt examples
Pricing compare
| Provider | Price per video | Notes |
|---|---|---|
| AI Generate | $0.0840 | This site. Pay as you go from $10, no subscription. |
| Directly from Runway | varies | Separate account and billing with the provider. |
Related models
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Google veo 3.1, reference-to-video, Fast-720p
Google veo 3.1, text-to-video, Fast-4K
pixverse-v6, transition, 360p(no audio)
FAQ
How much does Runway, extend-ai-video, 720p cost?+
$0.0840 per video, charged from your credit balance. No monthly subscription and no minimum commitment. Top-ups start at $10 for 1,430 credits.
What kind of model is Runway, extend-ai-video, 720p?+
Runway, extend-ai-video, 720p is a video-generation model from Runway, served through the AI Generate API.
How do I call Runway, extend-ai-video, 720p from my code?+
Send an HTTPS POST with your Bearer token to our /api/v1/ endpoint. Every model uses the same create-task request, so no provider SDK is needed. The "Use via API" section above has a working curl example.
Can I use Runway, extend-ai-video, 720p in production?+
Yes. The limit is 20 new requests per 10 seconds per API key, and status polling does not count against it. Each job returns a taskId, and you get the result by polling or through a webhook. Daily and monthly spend caps in the dashboard settings protect you from runaway usage.
What is the markup over the upstream price?+
We add 40% to the upstream price at the starting tier. When your spend over the last 30 days reaches $50, $200, $1,000 or $5,000, the markup drops to 30%, 22%, 15% or 10% automatically.
Ready to try Runway, extend-ai-video, 720p?
Create an account and top up from $10 (1,430 credits). You pay only for what you run: $0.0840 per video.