Kuaishou's Kling 4.0, fully launched 2026-10-15 with an API rollout on 2026-10-21: up to 30 seconds natively, 4K and 1080p 10-bit HDR, up to 10 keyframes and 15 multimodal references, stereo audio. Third-party surveys put it around ¥0.90/sec, one of the highest first-tier rates; Kuaishou does not publish a full official price list, so treat this as a benchmark quote rather than a list price and confirm in the console. The lighter Kling 4.0 Flash went fully open on 2026-11-04 but has no published per-second API rate, so it is not collected.
Buy an API key or subscription straight from the vendor. The most transparent option, billed per second — but you assemble the script, storyboard and voiceover yourself. Currently as low as ¥0.09/sec.
| # | Platform / model | Layer | Price▲ | vs Seedance 1080P |
|---|---|---|---|---|
| 20 | APIKling 4.0 ↗Kuaishou · 2026-10-21 API launch, third-party benchmark ¥0.90/sec | Model | ¥0.90 | ▲ ×1.43 |