What is Kling 4.0 and what makes it different from previous versions?

A: Kling 4.0 is a flagship multimodal AI video generation model built for connected visual storytelling. It introduces native 3 to 30-second generation (extendable up to 2 minutes), up to 15 multimodal Omni references, 10 timeline keyframes, 4K 10-bit HDR resolution, 21:9 ultrawide framing, and native stereo lip-sync.

How many reference images and videos can I use in one Kling 4.0 task?

A: Kling 4.0 supports up to 15 references in a single task—including up to 10 reference images, 5 video clips, 7 distinct character or object subjects, and 3 voice profiles—along with up to 10 keyframe images to guide key visual states.

Does Kling 4.0 generate audio and synchronized dialogue?

A: Yes. Kling 4.0 features native two-channel stereo sound generation and multilingual lip-sync (supporting English, Chinese, Japanese, Korean, Spanish, French, German, and more), coordinating spoken lines, facial performance, and ambient sound in one pass.

What is the difference between Kling 4.0 Flagship and Kling 4.0 Flash?

A: Kling 4.0 Flagship is designed for maximum cinema quality (up to 30s native duration and deep multimodal control), while Kling 4.0 Flash is optimized for faster, higher-frequency creation (up to 20s duration) ideal for social stories and rapid prototyping.

Kling 4.0 AI Video Generator: Native 30s 4K HDR & Omni Reference

Bring Connected Visual Stories to Life with Kling 4.0

Native 30-Second 4K 10-Bit HDR AI Video Generator

Go beyond a striking first frame. Upload your images or up to 10 keyframes, direct complex camera movements, and generate native 30-second cinematic 4K HDR videos with stereo sound and lifelike lip-sync.

Image to Video

Reference to VIdeo

Experience Kling 4.0 Cinematic Masterpieces in Action

From Multimodal Briefs to 30-Second 4K HDR Cinema

See how Kling 4.0’s Omni Reference engine transforms your scripts, keyframes, and audio cues into seamlessly connected visual stories.

Feed up to 15 multimodal references in a single task—combining up to 10 images, 5 driving videos (up to 30s), 7 distinct character/object elements, and 3 voice profiles—paired with up to 10 timeline keyframes and 8,000-token detailed prompts.

Input	Output Video

How to Direct Connected Visual Stories with Kling 4.0

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1. Upload Omni References & Keyframes

Upload up to 15 multimodal references—including up to 10 images, 5 driving videos, and 7 character subjects—or set up to 10 keyframes to lock in your visual anchors.

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2. Direct Camera, Action & Stereo Audio

Input up to 8,000 tokens of detailed camera movements, fast action paths, and spoken dialogue lines with custom voice profiles and ambient sound cues.

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3. Render Native 30s 4K HDR Video

Choose between Kling 4.0 Flagship or Flash mode to generate up to 30 seconds of native 4K 10-bit HDR video (extendable up to 2 minutes) with lifelike lip-sync.