In a post on X, @koltregaskes reports that Kling 4.0 Preview, Kling 4.0 Flash and Kling Image 4.0 are being developed or prepared for release. The post describes the information as an exclusive leak from Dev Mode, so the reported capabilities should not be treated as confirmed specifications or evidence that the models are currently available.
The report lists several possible video-generation features, including clips of up to 30 seconds, output at up to 1080p resolution, an Omni Reference feature supporting a total of 15 elements, and video extensions to 60 seconds. It also mentions up to three voice references, although it does not explain how those references would work in practice.
What the report says about Kling 4.0 video
The post lists video generation of up to 30 seconds. It does not say whether that limit applies equally to both named video models.
The post separately describes extensions to 60 seconds, suggesting that users might be able to continue an existing clip rather than generate the full longer video in one step. The report does not establish the extension workflow.
The post also reports an experimental Long Video mode. According to the report, this mode could produce a 120-second video at 1080p and extend the result both forward and backward. That is a reported capability, not a tested result, and the source does not describe its quality, availability or technical constraints.
Omni Reference is listed with a total limit of 15 elements. The post does not define what counts as an element, how those references are selected, or how the feature affects generation. It also does not establish whether the limit applies to images, characters, objects or other reference types.
How Kling 4.0 Preview and Flash reportedly differ
The source names Kling 4.0 Preview and Kling 4.0 Flash but does not explain how they differ. It provides no supported comparison of their speed, quality, pricing, context limits, supported modes or intended users.
The attached interface image appears to show separate entries labelled “VIDEO 4.0 Preview” and “VIDEO 4.0 Flash Preview” in a model selector. That supports the limited observation that both labels appear in the displayed interface. It does not confirm the models’ public availability or establish different capabilities for either one.
Image credit: @koltregaskes on X
What is reportedly planned for Kling Image 4.0
The post says Kling Image 4.0 apparently generates between one and nine images at a time. It describes output of up to 4K and adds “possibly 8K,” making the higher resolution especially uncertain.
Neither 4K nor 8K should therefore be presented as a confirmed specification. The post also does not explain whether the reported image count and resolution vary by mode, subscription or workflow.
What remains unknown about the release
The supplied report does not establish an official announcement, release date or current availability for Kling 4.0 Preview, Kling 4.0 Flash or Kling Image 4.0. It also does not provide official documentation, hands-on testing, sample outputs or performance comparisons.
Readers should treat the listed capabilities as unverified details from the report until official specifications or access are available.
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