KuaishouCheapest Kling 4.0 API
Run Kuaishou's official Kling 4.0 from $0.1486/s — 5% below the official $0.157/s. Pay per second, no subscription needed, failed generations refunded.
- From
- $0.1486/s
- 720p
- Official
- $0.157/s
- Kuaishou
- You save
- up to 5%
- 100 × 5 s clips
- $74.29
- official $78.50
Try it
Try Kling 4.0 at this price
Runs on your balance at the price on the button; failed runs are refunded. Results are saved to your account.
Price check
Kling 4.0: our price vs the official price
Every Kling 4.0 tier, priced live from our catalog next to Kuaishou's official list price.
| Tier | Kuaishou official | CheaperGen | You save | 5 s clip |
|---|---|---|---|---|
720p audio included | $0.1486/s | −5% | $0.75$0.79 | |
1080p audio included | $0.2226/s | −5% | $1.12$1.17 |
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. Audio is always generated and included in the price.
At scale
What Kling 4.0 costs at volume
Totals for common batch sizes at today's per-second prices.
| Batch | Tier | Official | CheaperGen | You keep |
|---|---|---|---|---|
| 100 × 5 s clips | 720p | $78.50 | $74.29 | $4.21 |
| 100 × 5 s clips | 1080p | $117.50 | $111.26 | $6.24 |
| 60 minutes of footage | 720p | $565.20 | $534.89 | $30.31 |
Why it costs less
Same official Kling 4.0, lower price
The model and its output are the same; the cost of serving it is lower. How our inference works.
Official partnerships
Direct partnerships with the official model labs give us their lowest partner pricing on official models like Kling 4.0.
Our own GPU inference
For open-source models, our own GPU inference — optimized kernels, warm pools and per-model tuning — makes generation several times faster and lowers the cost further.
Automatic routing
Every Kling 4.0 request is routed to the most cost-effective healthy route, with live health checks and failover.
Spend less
Ways to pay even less for Kling 4.0
Draft at 720p, deliver at 1080p
A second of 720p costs $0.1486 — 67% of the 1080p rate ($0.2226/s). Iterate on prompts and camera moves cheaply, then render the final cut with the same prompt.
Test with 3-second clips
You pay per second of output (3–30 s per clip). A 3-second 720p test costs $0.45; lengthen only the takes you keep.
Consider Kling 3.0 Turbo for volume
In the same family, Kling 3.0 Turbo costs $0.1329/s at 1080p vs $0.2226/s for Kling 4.0 — 40% less.
Failed generations cost nothing
The price is held when you submit and refunded in full if a generation fails or you cancel it while it is queued. You only pay for outputs you get.
Volume pricing below these rates
Committed monthly volume unlocks rates below the public price list, plus invoicing and dedicated capacity.
Cheaper alternatives
Cheaper alternatives to Kling 4.0
Other video models with an overlapping task, cheapest first. Price per second at each model's lowest tier.
Start generating with Kling 4.0
Try Kling 4.0 in the Studio, or call it from your code with one API key. A 5-second 720p clip costs $0.75 and failed generations are refunded.
curl -X POST https://cheapergen.com/api/v1/run/kuaishou/kling-4.0/text-to-video \
-H "Authorization: Bearer $CHEAPERGEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"prompt": "…"}'FAQ
Cheapest Kling 4.0 API questions
Our prices on this page are live; Kuaishou's official prices were verified October 18, 2026.
Kling 4.0 is developed by Kuaishou. CheaperGen provides API access and does not own the model. Trademarks belong to their respective owners.