Kling 4.0 has no announced release date as of September 26, 2026. A screenshot circulated on September 24 showing menu entries for “VIDEO 4.0 Preview” and “VIDEO 4.0 Flash Preview.” It is the most concrete public clue so far, but Kuaishou has not confirmed the image, published a 4.0 specification, or listed a public 4.0 API model ID. Seeing a model name in a purported development interface is different from being able to use it in a production account.
The latest officially announced major family is Kling AI 3.0. It has received meaningful updates since its February launch, including native 4K output and a separate 3.0 Turbo model. Neither update is a Kling 4.0 release.
What happened on September 24?
An X post attributed to a Dev Mode leak named Video 4.0 Preview, Video 4.0 Flash Preview, and Image 4.0. A report that displays the supplied image shows the two video names in a model selector and a 1080p setting. Those are observations about the supplied screenshot, not an authentication of its origin or a demonstration of a working model.
The post makes several additional claims that the visible menu cannot verify:
| Reported detail | What we can say now |
|---|---|
| Video clips up to 30 seconds | A claim in the post; no official duration limit or generated sample establishes it |
| Up to 15 Omni references and three voice references | The post gives counts but does not define what qualifies as one reference or which combinations work |
| Extensions up to 60 seconds | The workflow and source-clip limits have not been documented by Kling |
| Experimental long-video mode up to 120 seconds | An early claim, not proof of a continuous two-minute finished shot |
| Image 4.0 with one to nine images and possibly 8K | A separate image-model claim; “possibly 8K” is especially tentative |
The screenshot does not establish that Flash is faster, cheaper, or missing audio. It does not show a release date, price, or account eligibility. Preview controls can change before release, so the reported numbers should not be copied into an integration plan as final limits.
Which Kling version is actually available?
Kuaishou announced the 3.0 family on February 5: Video 3.0, Video 3.0 Omni, Image 3.0, and Image 3.0 Omni. The video launch covered native audio in multiple languages, clips up to 15 seconds, more reliable references, and multi-shot storytelling. Omni has its own reference and storyboard controls; a family-level feature should not be assumed to work in every model and mode.
Kling added native 4K video output on April 23. Kuaishou's second-quarter report also confirms Kling 3.0 Turbo, positioned for faster, less expensive generation while maintaining audiovisual sync. The official video API capability map currently lists:
| API model ID | Duration | Listed output resolutions |
|---|---|---|
kling-3.0-turbo | 3–15 seconds | 720p, 1080p |
kling-v3 | 3–15 seconds | 720p, 1080p, 4K |
kling-v3-omni | 3–15 seconds | 720p, 1080p, 4K |
The map does not list a 4.0 identifier. These are documented model limits, not a guarantee that every account or feature combination has access to every setting. Check the model selector and current billing screen before a paid batch.
Does “Kling 4K” mean “Kling 4.0”?
No. 4K describes output resolution; 4.0 would be a model version. Kling's native 4K announcement explicitly assigns the feature to the Video 3.0 series. Likewise, the 1080p option in the leaked Preview image does not prove that a future 4.0 release will be limited to 1080p. It only shows a setting in one unverified image.
This distinction matters when a third-party page offers a “Kling 4.0” tier. The label might be the site's own product name. Before buying, ask for the underlying provider, exact model ID, supported settings, and price at generation time. None of the official sources reviewed here publishes a Kling 4.0 price or public API contract.
Should a video team wait for 4.0?
Plan around models you can submit jobs to today. If the deliverable needs 4K, compare Video 3.0 and Omni. If the work involves many drafts, test Turbo against your quality bar. Store each shot's prompt, references, model ID, resolution, duration, spend, and approval decision outside any one provider's generation history.
When a public 4.0 release arrives, run the same small set of difficult shots through both generations: dialogue with clear lip sync, a character across multiple angles, an action involving hand-to-object contact, and a shot with readable text. Record render time and cost per approved second, including rejected attempts. That is more useful than judging a model from launch samples or a version number. For a wider baseline, see our current AI video model comparison.
Frequently asked questions
Is Kling 4.0 out now?
No official public launch or API model has been documented as of September 26, 2026. The Preview/Flash image may indicate testing, but it does not establish general availability.
When is the Kling 4.0 release date?
Kuaishou has not announced one. Dates inferred from earlier version intervals or a leaked selector are guesses.
What is the latest official Kling AI version?
The latest announced major family is Kling AI 3.0. Kuaishou subsequently released a 3.0 Turbo variant and native 4K output for the standard 3.0 video models.
Will Kling 4.0 support 30-second video and 8K?
The post claims up to 30 seconds for video. Its tentative 8K claim concerns a separate Image 4.0 rumor, not video output. Neither is an official product specification.
Is a third-party “Kling 4.0” subscription official?
A product name alone cannot establish that. Compare its provider and exact model ID with Kling's official app and API documents before treating an offer as access to a new Kuaishou model.
Sources and evidence
Official: Kuaishou's 3.0 launch, Kuaishou's second-quarter results, Kling's native 4K announcement, and the Kling API capability map.
Unverified report: September 24 X post and an independent account showing its supplied screenshot.