Kling 4.0
Kling 4.0 by Kuaishou costs $0.141/s ($0.705 for a 720p · 5 s clip) at WaveSpeed, the one provider the board counts, as of 28 Oct 2026.
Cheapest
$0.141/s
Providers
1
Arena
Not ranked
Kling 4.0 price by provider
Kling 4.0 price per variant
| Variant | Median | Range | Providers counted |
|---|---|---|---|
| 720p · 5 s | $0.141/s ($0.705 per 720p · 5 s clip) | — | 1 |
| 1080p · 5 s | $0.235/s ($1.18 per 1080p · 5 s clip) | — | 1 |
About Kling 4.0
Kling 4.0 keyframes on fal (fal-ai/kling-video/v4/keyframes-to-video). OpenAPI read 2026-10-21. Checked again on 2026-10-23: kling/v4/keyframes-to-video has no OpenAPI document and its queue returns 404, so this row stays on fal-ai/kling-video/v4/keyframes-to-video. No llms.txt page is published for either spelling. prompt and keyframes are required. keyframes holds 2 to 10 images, and also at most duration plus 1 (4 at 3 seconds, 6 at 5 seconds, 10 from 9 seconds up). The first image is the opening frame and the last is the closing frame. Each item is an image_url plus an optional time in seconds; omit time to space the frames evenly. Duration is an integer from 3 to 30 seconds, default 10. Resolution is 720p or 1080p, default 1080p. aspect_ratio is 16:9, 9:16, 1:1, or 21:9, default 16:9. generate_audio defaults to false and is the native-audio switch. voice_ids accepts up to 3 voices, named @Voice in the prompt. There is no negative prompt and no seed. No price is published for this endpoint. The public Kling 4.0 pages say API access is coming soon.
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Kling 4.0 pricing questions
- How much does Kling 4.0 cost per second?
- The median is $0.141/s across 1 counted provider, for a 720p · 5 s clip, as of 28 Oct 2026.
- What is the cheapest Kling 4.0 API?
- Only WaveSpeed publishes a price for Kling 4.0 that the board counts: $0.141/s, as of 28 Oct 2026.
- How much is a 1080p · 5 s Kling 4.0 video?
- The median is $1.18 ($0.235/s) across 1 counted provider, as of 28 Oct 2026.
- Which providers sell Kling 4.0?
- Only WaveSpeed lists it, with a price the board counts, as of 28 Oct 2026.