KuaishouKling 4.0 API Pricing Per Second
Kling 4.0 costs $0.1486–$0.2226 per second of generated video, by resolution. That's 5% below the official price. Billed by the second, with nothing added per request.
- Per second from
- $0.1486
- 720p
- At 720p
- $0.1486/s
- official $0.157/s
- Per minute from
- $8.92
- 720p
- Below official
- up to 5%
Try it
Try Kling 4.0 — see the exact price first
Runs on your balance at the price on the button; failed runs are refunded. Results are saved to your account.
Per second
Kling 4.0 price per second by resolution
Our price with the official list price struck through, and what a minute of output costs.
| Resolution | Per second | Per minute |
|---|---|---|
720p | $0.1486 | $8.92 |
1080p | $0.2226 | $13.36 |
- Official price: Kling developer API list price for Kling 4.0, kling.ai/dev/pricing (1 unit = $0.157 / s at 720p, 1.5 units = $0.235 / s at 1080p; with input video $0.094 / $0.141 per second of output plus the longer of the output and the input video; audio always on). Verified October 18, 2026; our prices are live.
Generating at volume? The Pro and Max monthly plans lower the price on most models while they're active, and teams with larger volumes can talk to us about volume pricing.
Calculator
What Kling 4.0 costs for your volume
Pick a resolution and clip length and a monthly volume. Every figure is a live quote, so per-clip billing is exact.
Per month · 100 generations
74.29
$78.50 at the official price
- Per clip
- 0.75
- Per kept clip
- 0.75
- Saved per month
- $4.21
- Saved per year
- $50.52
Live prices · failed generations are free
Per clip
From per second to per clip
Every common clip length at 720p and 1080p.
| Clip length | 720p | 1080p |
|---|---|---|
| 3 s | $0.45 | $0.67 |
| 5 s | $0.75 | $1.12 |
| 8 s | $1.19 | $1.79 |
| 10 s | $1.49 | $2.23 |
| 12 s | $1.79 | $2.68 |
| 15 s | $2.23 | $3.34 |
| 20 s | $2.98 | $4.46 |
| 30 s | $4.46 | $6.68 |
With reference video
Per billed second with a reference video
Reference video seconds are billed together with the output, at this rate. Example: 5 seconds of output with a 5-second reference is 10 billed seconds.
| Resolution | Official | CheaperGen | 5 s + 5 s |
|---|---|---|---|
| 720p | $0.094/s | $0.0891/s | $0.90 |
| 1080p | $0.141/s | $0.1336/s | $1.34 |
- Unit. One second of generated video. A request for 3–30 s is billed for exactly that many seconds at its resolution's rate.
- Reference videos. Their seconds are billed together with the output, at the reference rate (from $0.0891/s at 720p).
- Tasks. Text to video, image to video and reference to video share the same per-second rates.
- No request fee. Nothing is added per request: a clip costs its seconds times the rate.
- Failed = free. Failed generations, and jobs cancelled while queued, are refunded in full.
- Price first. POST /v1/quote/kuaishou/kling-4.0/text-to-video returns the exact price of any request, free.
Other platforms
Kling 4.0 per second on other API platforms
Platforms we compared that charge more than CheaperGen for Kling 4.0 at every tier we sell, at their published prices.
| Where | 720p | 1080p |
|---|---|---|
CheaperGen live price | $0.1486/s−5% | $0.2226/s−5% |
Kuaishou (official) official list price | $0.157/s | $0.235/s |
fal | $0.157/s | $0.235/s |
Replicate | $0.157/s | $0.235/s |
Each platform's price is from its own pricing page (checked November 8, 2026). The full comparison: Cheapest Kling 4.0 API: 3 Providers Compared (November 2026)
Compare
Kling 4.0 per second vs other video APIs
Every video model we offer at 720p, cheapest first — each at its lowest silent price for that resolution. Kling 4.0 is number 20 of 22.
| # | Model | Tier | Audio | Per second | Official |
|---|---|---|---|---|---|
| 1 | Grok Imagine Video 1.5 Lite xAI | 720p | Audio included | $0.0219/s | |
| 2 | LTX-2.5 Lightricks | 720p | Audio included | $0.0285/s | |
| 3 | PixVerse V6 PixVerse | 720p | Silent | $0.0368/s | |
| 4 | Veo 3.1 Lite Google | 720p | — | $0.0375/s | |
| 5 | Vidu Q3 Turbo Shengshu | 720p | Audio included | $0.0412/s | |
| 6 | Seedance 2.0 Mini ByteDance | 720p | Audio included | $0.0627/s | |
| 7 | Grok Imagine Video 1.5 xAI | 720p | Audio included | $0.0675/s | |
| 8 | Vidu Q4 Shengshu | 720p | Audio included | $0.0699/s | |
| 9 | Veo 3.1 Fast Google | 720p | Silent | $0.0736/s | |
| 10 | Vidu Q3 Pro Shengshu | 720p | Audio included | $0.0748/s | |
| 20 | Kling 4.0 Kuaishou | 720p | — | $0.1486/s |
Price per second is one input; quality, speed and features differ. Models that include audio are compared with it.
For AI agents and LLMs: llms.txt has this model's live prices, the price comparison and the API reference in Markdown.
Kling 4.0 is developed by Kuaishou. CheaperGen provides API access and does not own the model. Trademarks belong to their respective owners.