Kling 4.0 — more room for your story
Plan longer scenes with up to 30 seconds, 10 keyframes and 4K HDR. Kling 4.0 is coming soon to SeedRouter; generation is not available here yet.
- Text to video
- Image to video
- Omni Reference
- Multiple keyframes
Kling 4.0 pricing status
There is no SeedRouter rate to quote while this model is unavailable. The official release overview describes capabilities and access, without an API price schedule.
| Access | Status | Price | What it means |
|---|---|---|---|
| Kling 4.0 | Wider release planned for October | Not listed in the overview | An announcement is not a SeedRouter launch date. |
| Flash | Limited official rollout | Check Kling account terms | Official subscription access is separate from API access. |
Official availability checked October 8, 2026. Kling’s official release overview
What is Kling 4.0?
Kling 4.0 is Kling AI’s announced video model for building scenes from text, images and mixed references. Its longer clips and timeline controls give directors more ways to specify where a scene begins, how it develops and where it ends.
The full model is scheduled for a wider release in October 2026. Flash has a separate limited rollout and a smaller feature set. The specifications below describe Kling’s announcement, not features you can already run on SeedRouter.
Announcement reviewed October 8, 2026 · No SeedRouter launch date confirmed
Where can you use Kling 4.0?
Check which release an access offer covers before planning your work.
Kling 4.0 full model
Kling’s September announcement describes early access, followed by a wider October release. It does not give a specific launch day.
Flash early access
Kling identifies Ultra Yearly subscribers in its Flash announcement. Sign in to Kling Creator Studio to check eligibility for your account.
SeedRouter
This page is a preview of the announced model. There is no Kling 4.0 Playground or generation access on SeedRouter yet.
Kling 4.0 gives you scene control
Kling 4.0’s announced controls address duration, composition and continuity.
Let a scene develop
Kling 4.0’s announced 30-second generation gives a short sequence room for an opening, an action and a closing beat. Plan those beats before writing the prompt.
Place important moments
Use Kling 4.0’s announced keyframe controls to mark a reveal, change of angle or character entrance. Up to 10 frames can guide the timeline.
Bring references together
Combine images, video and subject references to describe the look and action. The announced total is 15 reference assets in one task.
Projects to plan for Kling 4.0
These are ways to use the announced controls when access becomes available, not results from SeedRouter tests.
Product reveals
Sketch the opening composition, reveal and closing shot. Keyframes could help preserve the order of those moments within a short commercial.
Short narrative scenes
Write one scene with a clear action and ending. Keep the first test small enough to judge whether the subject and setting stay consistent.
Cinematic finishing
Consider the announced HDR formats if your editing workflow supports them. Confirm the actual export options before promising a particular delivery format.
Prepare for Kling 4.0
- 01
Check the release
Use the release guide to distinguish the full model announcement from Flash early access.
- 02
Choose one scene
Define a subject, setting and short action. Write the start and finish before adding camera instructions.
- 03
Prepare your references
Collect assets you have permission to use. Note which reference describes appearance, composition or motion.
- 04
Confirm access before production
Check the available model, supported options and price before scheduling a paid project. SeedRouter access remains pending.
Kling 4.0 API status
Kling 4.0 has no callable SeedRouter API today. Official creative features do not establish an API request format.
Generation access pending
There is no request to submit here yet. Use an available model if your application needs video generation today.
Reference pending
A Kling 4.0 API reference will need confirmed fields, limits and supported media. This preview is not an integration guide.
Pricing pending
Model pricing and access will be shown when the service is available. No advance rate or launch date is promised here.
Kling 4.0 and Flash
The official comparison gives the full model more duration and timeline control.
| Announced capability | Kling 4.0 | Kling 4.0 Flash |
|---|---|---|
| Single generation | Up to 30 seconds | Up to 20 seconds |
| Output | 1080p / 4K, 10-bit HDR | Up to 720p, 8-bit SDR |
| Timeline keyframes | Up to 10 | Not supported |
| Official availability | Wider release planned for October | Limited rollout |
| On SeedRouter | Coming soon | Coming soon |
These are announced capabilities, not a side-by-side performance test. Kling’s official release overview
Kling 4.0: before you plan
30 seconds is the single-pass limit
The announced two-minute extension feature uses multiple passes and is marked coming soon. It is not a two-minute generation option available here.
A launch window is not a deadline
October describes Kling’s wider release plan. SeedRouter availability, final options and pricing still need confirmation.
Follow Kling 4.0 on SeedRouter
Keep the release details together
Review the announced capabilities, access differences and linked official source before choosing between the full model and Flash.
Find a model for today
Browse the current catalogue when you need to start now. Available models have their own pricing and documentation to assess before use.
Available Kling models
Explore current Kling options while you wait for Kling 4.0. Each has its own capabilities and pricing.
Kling 3.0 makes 3–15 second clips from text or a first and last frame, with optional native sound, up to five shots and up to 4K. Pay per second, no plan.
View modelKling 3.0 Turbo makes 3–15 second clips with sound from a prompt or a first frame, at 720p or 1080p. Pay per second, no plan, failed runs free.
View modelKling 4.0 release guide
Read the dates, early-access details and open questions behind the announcement.
Kling 4.0 questions
When is Kling 4.0 coming out?+
Kling states October 2026 for the full model’s wider rollout. The official overview reviewed on October 8 does not specify a day.
Can I use Kling 4.0 on SeedRouter?+
Not yet. Kling 4.0 is coming soon, with no confirmed SeedRouter launch date. The current page does not accept generation requests.
Is Kling 4.0 Flash the same model?+
Flash belongs to the same family but has a smaller feature set. Its announced limits include 20-second clips at 720p, without multiple keyframes.
Does Kling 4.0 support first and last frames?+
The full model announcement includes timeline control with up to 10 keyframes. Flash explicitly excludes first/last-frame control and multiple keyframes.
Is Kling 4.0 free?+
No free access is offered on SeedRouter. Check Kling’s current account terms for official access; a release announcement does not establish a free plan.
Follow the Kling 4.0 release
Check what has been announced and what still needs a launch date. For work you need to start today, explore the available models.