KingVid

What is Kling 4.0 AI Video Generator?

Kling 4.0 AI Video Generator is the video creation tool presented on KingVid. According to the page, Kling 4.0 is the next generation of Kling's AI video system, designed to combine text, images, videos, subjects and voice references into a more complete production workflow rather than a single-shot generator.

The page states that Kling 4.0 has been officially announced, with Kling 4.0 Flash entering limited early access. Importantly, it also states that the generator on this page continues to use the available Kling 3.0 task until Kling 4.0 is integrated. The specifications listed below are described as officially announced capabilities for the new model family, and some output options remain marked as "coming soon" by Kling.

The interface is browser-based and structured around a prompt box, a model selector, a generation-mode selector, aspect ratio, duration, resolution and an optional audio toggle.

How Kling 4.0 works

A user writes a prompt, selects a generation mode, and sets output parameters before generating. The page's own form shows a Model field (Kling 3.0), a Generation Mode field with Text to Video and Frame to Video options, a prompt of up to 2,500 characters in the interface, plus Aspect Ratio, Duration, Resolution and a "Generate Audio" switch for synchronized audio. The generate action is labelled "Generate Video · 315 credits".

The announced specification list describes a broader set of modes: text to video, image to video, first and last frames, multi-keyframes and Omni Reference. Within that workflow, keyframes act as defined visual moments that anchor character states and scene composition, while reference assets communicate character, composition, movement and sound. The stated intent is to let a single generation carry a setup, a change and an ending, with pacing and shot changes described inside one longer prompt.

Main features

• Longer generations: 3 to 30 seconds of video in one generation.
• Keyframe direction: up to 10 keyframe images, used to define the visual moments that matter most.
• Reference inputs: up to 15 combined items across images, videos, voice references and subjects.
• Extended prompting: up to 8,000 tokens of prompt length.
• Generation modes: text to video, image to video, first and last frames, multi-keyframes and Omni Reference.
• Resolution options: 720p, 1080p and 4K. The page lists 10-bit HDR at 1080p and 4K as coming soon.
• Aspect ratios: Auto, 16:9, 9:16, 1:1 and 21:9.
• Audio: two-channel stereo output with dialogue and lip-sync support where the selected mode supports it.
• Video editing: up to 5 input clips, with each clip and the combined input limited to the announced duration rules.

Pricing

The page does not publish subscription tiers, per-credit pricing, currency or billing details. The only commercial figure shown is on the generate button itself: Generate Video · 315 credits per generation, alongside the interface label "170 / 2500" for prompt length.

Because no plan structure, credit purchase price, refund policy or licensing terms appear on the supplied page, those fields remain unknown here and should be confirmed directly with the provider.

Common use cases

The page illustrates its positioning with four example directions:

• Cinematic sequences: a wide-format shot combining character performance, rapid movement and camera tracking while keeping visual rhythm.
• Consistent characters in live-action: multiple character references holding together through a fast-moving street encounter built around a motorcycle.
• Stylised animation: a handcrafted claymation-style world with soft sculpted textures, miniature scenery and expressive motion.
• Long-form narrative continuity: a dragon story that carries character, landscape and dramatic scale through a connected sequence.

More broadly, the announced capabilities suit creators who need multi-beat scenes, character-consistent shots, or combined picture-and-sound output in a single pass rather than many stitched clips.

Limitations

• The generator on this page currently uses the Kling 3.0 task; Kling 4.0 is described as announced but not yet integrated.
• 10-bit HDR at 1080p and 4K is listed as coming soon, and the page notes that some output options remain marked as coming soon by Kling.
• Hard ceilings apply: 30 seconds per generation, 10 keyframes, 15 reference inputs, 8,000 prompt tokens and 5 input clips for editing.
• Lip-sync and stereo output are dependent on the selected mode.
• No pricing, plan, licensing or commercial-use information is published on the supplied page.
• All details are drawn from the supplier's own page and have not been independently verified.

Summary

Kling 4.0 AI Video Generator is presented as a story-level video tool built around longer generations, multi-keyframe direction and combined reference inputs spanning images, video, subjects and voice. The announced specification set is ambitious — 3 to 30 seconds, up to 10 keyframes, 15 references and 4K output with stereo audio — but the operational reality on the page is a generator running Kling 3.0 with a 315-credit cost per generation. Buyers should treat the 4.0 feature list as announced capability and confirm current model availability, output options and pricing before committing.