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Kling 4.0 – Make 30-Second AI Videos in 4K

COMING SOON on OpenArt. The Kling 4.0 AI video generator makes videos up to 30 seconds long in up to 4K, follows up to 10 keyframes you set, and gives your characters voices in 9 different languages.

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Model Kling 3.0
Add a reference video
Add an image
Try Kling 3.0

Key Features of Kling 4.0 AI Video Model

Make a full 30-second video in one go

Kling 4.0 makes videos up to 30 seconds long from a single prompt. Kling 3.0 stopped at 15 seconds. That extra time fits a whole story, like an ad that opens on a problem, shows the product, and ends on your logo. The characters, voices, and look stay the same from the first second to the last.

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Set up to 10 keyframes across your video

Kling 4.0 AI video generator lets you upload up to 10 keyframes, which are pictures of the moments your video must show. Use 2 keyframes to set the first and last shot, or use all 10 to plan the whole video shot by shot. Kling 4.0 fills in the motion between them. Your character and setting stay the same from one keyframe to the next.

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Use up to 15 references in one video

Kling 4.0 takes up to 15 references at once, including up to 10 pictures, up to 5 video clips, and voice samples. A face photo sets how your character looks, a clip sets how they move, and a voice sample sets how they sound. Save that person in OpenArt Characters to use them again in your next video.

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Give your characters voices in 9 languages

Kling 4.0 makes spoken dialogues in English, Spanish, Portuguese, French, German, Hindi, Chinese, Japanese, and Korean. You can also ask for an American, British, or Indian accent, or a Chinese dialect like Cantonese. The voices sound like real people from that place. You can make a version of your video for a new country without hiring a voice actor.

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How to Use Kling 4.0 on OpenArt

Choose Kling 4.0
Step 01

Choose Kling 4.0

Open OpenArt's AI video generator and pick Kling 4.0 from the model menu. Pick Kling 4.0 Flash instead for lower-cost videos up to 20 seconds.

Prompt and add references
Step 02

Prompt and add references

Type your prompt, upload pictures, video clips, or a voice sample as references, or add up to 10 keyframes for the moments your video must show.

Configure and generate
Step 03

Configure and generate

Choose a length from 3 to 30 seconds, a resolution from 720p to 4K HDR, and your aspect ratio, then generate and download.

Best Use Cases of Kling 4.0

Short drama and animation studios

Short drama studios need the same character to look and sound the same in every episode. Kling 4.0 fits a full scene into one 30-second video, and a saved face and voice carry into the next one. When one moment in a scene looks wrong, edit just that moment. The rest of the episode stays exactly as it was.

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Ad teams making product and brand videos

Ad teams can upload a video ad that already performs well and have Kling 4.0 copy its pace and camera moves with a new product. The product name and price show up as clear text inside the video. The same ad can then speak Spanish or Hindi for a new market. One winning ad idea turns into many versions to test.

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Musicians making music videos

Musicians can upload their own photos, a style picture, and the song as references. Kling 4.0 makes music video clips where the artist appears in every shot and the look stays the same. Keyframes let you line up the biggest moments with the chorus. You can fix any shot you do not like without making the whole clip again.

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Social media creators posting every week

Social media creators post often and rarely have a crew or a set. Upload one photo of yourself and a video you like, and Kling 4.0 makes a new clip with you in it. Kling 4.0 Flash keeps the cost low when you need a lot of videos in one week. You can post more often without booking a single shoot.

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Tips for Best Results

🎯

Give each moment a time in your prompt

Kling 4.0 follows timing you write into the prompt. Write something like "0 to 5 seconds: close-up of a coffee cup. 5 to 12 seconds: she picks it up and smiles," and each moment shows up where you want it.

🖼️

Place keyframes where the story changes

Start with 2 keyframes for the first and last shot. Add more only at the moments where something changes, like a character opening a door or a product coming out of the box.

⚡

Give each reference one job

Use a picture for how someone looks, a video clip for how they move, and a voice sample for how they sound. References that each point at a clear job give Kling 4.0 a clear target to match.

🎨

Write the exact line and the accent

Put the spoken words in quotes and name how they should sound, such as: she says "Welcome back" in English with a British accent. Kling 4.0 matches the voice to what you ask for.

Loved by Creators

I've tried many AI platforms... but OpenArt is still the best for character creation, image-to-video quality, and the variety of models available.

Jan C. Trustpilot

OpenArt offers an excellent array of AI tools... once you learn the features, the creative possibilities are amazing - and their support team is outstanding.

Tom G. Trustpilot

OpenArt is a very versatile AI platform with many image and video models, consistent character creation, and powerful editing tools.

Klant K. Trustpilot

Helpful AI tools all in one place - image and video generation, editing, and more... no need for multiple subscriptions.

Scorpy Trustpilot

Customer service is always quick and helpful... and the platform keeps getting better with new features and tools.

Richard M. Trustpilot

I've tried many AI platforms... but OpenArt is still the best for character creation, image-to-video quality, and the variety of models available.

Jan C. Trustpilot

OpenArt offers an excellent array of AI tools... once you learn the features, the creative possibilities are amazing - and their support team is outstanding.

Tom G. Trustpilot

OpenArt is a very versatile AI platform with many image and video models, consistent character creation, and powerful editing tools.

Klant K. Trustpilot

Helpful AI tools all in one place - image and video generation, editing, and more... no need for multiple subscriptions.

Scorpy Trustpilot

Customer service is always quick and helpful... and the platform keeps getting better with new features and tools.

Richard M. Trustpilot

I've tried many AI platforms... but OpenArt is still the best for character creation, image-to-video quality, and the variety of models available.

Jan C. Trustpilot

OpenArt offers an excellent array of AI tools... once you learn the features, the creative possibilities are amazing - and their support team is outstanding.

Tom G. Trustpilot

OpenArt is a very versatile AI platform with many image and video models, consistent character creation, and powerful editing tools.

Klant K. Trustpilot

Helpful AI tools all in one place - image and video generation, editing, and more... no need for multiple subscriptions.

Scorpy Trustpilot

Customer service is always quick and helpful... and the platform keeps getting better with new features and tools.

Richard M. Trustpilot

With so many AI platforms out there, OpenArt stood out as a stellar choice - I'd recommend it to any creator.

Jon S. Trustpilot

This platform includes everything you need for AI content creation - images, video, characters, audio, and multiple AI models in one place.

Mathew K. Trustpilot

OpenArt is pushing the boundaries of AI video creation... and it's clear the team is committed to improving the creator experience.

Iftikar Z. Trustpilot

I made my first AI music video with OpenArt... and their support team was the best help I've ever experienced.

Mark Trustpilot

I'm very happy with the support - my issue was resolved quickly and the team made the process easy.

Rasmus Trustpilot

With so many AI platforms out there, OpenArt stood out as a stellar choice - I'd recommend it to any creator.

Jon S. Trustpilot

This platform includes everything you need for AI content creation - images, video, characters, audio, and multiple AI models in one place.

Mathew K. Trustpilot

OpenArt is pushing the boundaries of AI video creation... and it's clear the team is committed to improving the creator experience.

Iftikar Z. Trustpilot

I made my first AI music video with OpenArt... and their support team was the best help I've ever experienced.

Mark Trustpilot

I'm very happy with the support - my issue was resolved quickly and the team made the process easy.

Rasmus Trustpilot

With so many AI platforms out there, OpenArt stood out as a stellar choice - I'd recommend it to any creator.

Jon S. Trustpilot

This platform includes everything you need for AI content creation - images, video, characters, audio, and multiple AI models in one place.

Mathew K. Trustpilot

OpenArt is pushing the boundaries of AI video creation... and it's clear the team is committed to improving the creator experience.

Iftikar Z. Trustpilot

I made my first AI music video with OpenArt... and their support team was the best help I've ever experienced.

Mark Trustpilot

I'm very happy with the support - my issue was resolved quickly and the team made the process easy.

Rasmus Trustpilot

Frequently Asked Questions

Kling 4.0 is the latest AI video model from Kuaishou. Kling 4.0 makes videos from 3 to 30 seconds long at up to 4K HDR, follows up to 10 keyframes, and takes up to 15 references at once. Kling 4.0 also speaks 9 languages, writes readable text inside the video, and edits videos you upload.
A single Kling 4.0 video runs up to 30 seconds, and a Kling 4.0 Flash video runs up to 20 seconds. You can make a clip longer with OpenArt's Extend Video tool, which adds up to 10 seconds at a time. For a longer piece with several scenes, OpenArt Director builds videos up to 5 minutes long.
Yes. Kling 4.0 makes video at 720p, 1080p, 4K, and 4K HDR, which shows brighter highlights and deeper shadows. Kling 4.0 Flash makes video at 720p.
Kling 4.0 uses up to 15 references in one video. That can include up to 10 pictures, up to 5 video clips that add up to 30 seconds or less, and voice samples. On OpenArt, you can save a character in your Characters library and reuse that person in future videos.
Yes. Kling 4.0 writes clear, correctly spelled text in English, Spanish, Portuguese, French, German, Hindi, Chinese, Japanese, and Korean. Kling 4.0 can also add emoji, which works well for titles and playful social videos.
Kling 4.0 makes videos up to 30 seconds long at 720p, 1080p, 4K, or 4K HDR, and supports keyframes and first-and-last-frame control. Kling 4.0 Flash makes lower-cost videos from 3 to 20 seconds long at 720p and works from references. Choose Kling 4.0 Flash for lots of everyday videos and Kling 4.0 for detailed story work.
Kling 3.0 makes videos from 3 to 15 seconds long and uses a start and end frame to guide the motion. Kling 4.0 doubles the length to 30 seconds and follows up to 10 keyframes. Kling 4.0 also adds 4K HDR, voice references, speech in 9 languages, readable on-screen text, and editing for videos you upload.
Kling 4.0 speaks English, Spanish, Portuguese, French, German, Hindi, Chinese, Japanese, and Korean. Kling 4.0 can also use American, British, and Indian accents in English, plus Chinese dialects such as Cantonese and Sichuanese.
Yes. Kling 4.0 edits one main video and can use up to 4 more clips as references for the change. Each clip and the total of all clips must be 30 seconds or less. Kling 4.0 changes only the part you describe, such as one character, one object, or one action.