OverblastRunway · video model
Gen-4.5
Runway: Gen-4.5 is a video model on the Overblast AI Gateway. Call it as runway/gen-4.5 with one Overblast API key, paid from your AI credits.
Prices are final: what a call costs in AI credits, in US dollars. As of 2 October 2026, from the live catalogue.
Price
| Price | $0.24 / second |
|---|
What it does
| Does | Text to video, Animates a start frame |
|---|---|
| Resolutions | 720p |
| Aspect ratios | 16:9, 9:16 |
| Clip lengths | 2, 3, 4, 5, 6, 7, 8, 9, 10 seconds |
| Frames | Takes a start frame |
| Sound | Silent |
| Seed | Takes a seed, for repeatable results |
Where it runs
| Regions | Runs globally; it cannot be pinned to the EU or the US yet |
|---|---|
| Zero data retention | Not applicable: video calls cannot carry the requirement |
| Endpoint | POST /v1/videos |
Call it
curl https://ai.overblast.app/v1/videos \
-H "Authorization: Bearer $OVERBLAST_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "runway/gen-4.5",
"prompt": "A paper boat drifting down a rainy street"
}'
# then poll GET /v1/videos/{id}, and fetch the clip from /v1/videos/{id}/contentAll video models and their prices · How the AI Gateway works