Kling 4.0 API: Access, Pricing & Alternatives
There is no public Kling 4.0 API yet. Where early access stands, what pricing to expect, and which Kling 3.0 endpoints developers can call today.
Last updated: 2026-10-11
Is there a Kling 4.0 API?
Not a public one, as of 11 October 2026. Kuaishou has not opened Kling 4.0 on its developer platform, and fal — the gateway this site uses — lists Kling 4.0 and 4.0 Flash as early access behind a contact form, with endpoint names and prices to be published on the model page at launch.
What you can call today
Kling 3.0 is fully available through fal's queue API. The endpoints this site uses:
| Endpoint | Input | List price (fal, audio on) |
|---|---|---|
fal-ai/kling-video/v3/standard/text-to-video | prompt, duration 3–15 s, aspect ratio, audio | $0.126 / s |
fal-ai/kling-video/v3/standard/image-to-video | start image, optional end image, prompt, duration | $0.126 / s |
Pro tiers, 4K variants ($0.42/s) and the O3 "Omni" line (reference-to-video) are also listed on fal. Prices change without notice; check the model page before budgeting.
What to expect from the 4.0 API
- Per-second billing like 3.0, probably higher for 30-second clips, 4K and HDR.
- New inputs for keyframes (up to 10) and reference assets (up to 15).
- The same queue pattern: submit, poll status, fetch result.
No code changes needed here
This site resolves the Kling 4.0 endpoint from its admin settings at runtime. When fal publishes the endpoint, it is tested and switched on without a redeploy — the status banner above reflects it.
Try Kling now
You can generate text-to-video and image-to-video clips with Kling 3.0 on this site today; the result card always names the model that rendered it. When Kling 4.0 passes our own test render it switches on automatically — the banner at the top of this page is the live status.
Open the generator →Sources
- Kling AI release notes: Meet All-New Kling 4.0
- fal: Kling 4.0 early access and What is Kling 4.0 (updated 2026-09-29)
- fal model pages for Kling 3.0: v3 standard text-to-video, v3 standard image-to-video
- Community first impressions: r/KlingAI_Videos
Facts above are as of 2026-10-11. Specifications are Kuaishou's published claims until independent tests confirm them.