Gen-4
Runway
Gen-4 costs $0.12 per second of generated video — the 12th cheapest of the 18 video APIs tracked here. A 10-second clip runs about $1.20, and the rate is 2.4× the cheapest option (Veo 3.1 Lite at $0.05/sec), while still coming in 70% under the priciest (Veo 3.1). It outputs up to 1080p with a maximum single clip of 10 seconds, and produces silent video — you supply the audio separately.
Per second
$0.12
Per credit
10-sec clip
$1.20
5 sec: $0.60
Resolution
1080p
max 10 sec per call
Native audio
No
10 peers offer it
Pricing basis
~12 credits/sec at the $0.01 API credit price = $0.12/sec.
Runway's image-to-video workhorse — mature character and scene consistency, the default in most commercial pipelines.
Capabilities
Price verified 2026-08-06 · source: manual
What it costs on a real workload
| Scenario | Monthly cost | Kling 3.0 Turbo |
|---|---|---|
| Social short-form6-second clips, 300 per month | $216 | $202 |
| Ad creative testing10-second clips, 60 variants per month | $72 | $67 |
| E-commerce product loops8-second clips, 1,000 per month | $960 | $896 |
| Side project / prototyping5-second clips, 40 per month | $24 | $22 |
Alternatives
- Kling 3.0 Turbo$0.112/s
7% cheaper per second than Gen-4.
- Seedance 2.0$0.14/s
1.2× the per-second rate of Gen-4.
Other models from this provider
- Gen-4 Turbo$0.05/s · 720p
- Gen-4.5$0.25/s · 1080p
Frequently asked questions
- How much does Gen-4 cost per video?
- Gen-4 is billed per credit, normalised to $0.12 per second of output. A 5-second clip costs about $0.60, a 10-second clip about $1.20. ~12 credits/sec at the $0.01 API credit price = $0.12/sec.
- What would Gen-4 cost for a real workload?
- At 6-second clips, 300 per month, Gen-4 comes to roughly $216 per month. The same workload on Kling 3.0 Turbo would be $202.
- Does Gen-4 generate audio?
- No. Gen-4 outputs silent video, so budget for a separate audio pass. If you need native audio, Vidu Q3-Turbo handles it at $0.055/sec.
- How long a clip can Gen-4 produce in one call?
- Up to 10 seconds per generation at 1080p. Vidu Q3-Pro goes furthest at 16 seconds, so longer sequences here mean stitching multiple generations.