Kling 5 vs Kling 4: What We Know So Far and What Kling 4.0 Does Today

As of November 2026, Kling 5 has not been released, and Kuaishou hasn't published any specs for it. So a fair comparison looks at what Kling 4.0 can do today, how much it improved on Kling 3.0, and what a next-generation model would have to beat to be worth the wait.

Kling 4.0 is the newest Kling model you can use right now. You can try it, along with Kling 3.0, directly in your browser on Kling5 AI. One thing to know up front: Kling5 AI is an independent website. It isn't Kling's or Kuaishou's official site, and it isn't affiliated with or endorsed by them.

What can Kling 4.0 do?

Kling AI officially launched Kling 4.0 on October 15, 2026, according to Kling's news page. The model's official release notes list these headline capabilities:

• Video length: 3 to 30 seconds in a single generation
• Keyframes: up to 10 keyframe images, plus first and last frames
• References: up to 15 items in one generation, including up to 10 images, up to 5 videos (30 seconds combined), and up to 7 elements
• Audio: two-channel stereo, with improved lip-sync
• Aspect ratios: 21:9, 16:9, 1:1, 9:16, and Auto
• Resolution: 720p, 1080p, and 4K
• Prompts: up to 8,000 tokens of text input
• Editing: targeted edits across up to 5 input clips, 30 seconds combined

Kling also highlights more stable fast motion and complex camera moves, more natural faces and lighting, and clearer on-screen text. For a deeper walk-through of each feature, see our guide to Kling 4.0 features.

How much did Kling 4.0 change from Kling 3.0?

A lot. Kling's own Kling 4.0 vs 3.0 comparison, published September 30, 2026, is the clearest picture of what one major version upgrade looks like.

Notice what didn't change: maximum resolution. Both generations already list 4K. The big jumps were in length, control, references, and audio.

That's a useful lesson for judging any future release. A major Kling version has mostly meant longer clips, more ways to direct the shot, and better sound, not just sharper pixels.

What do 30 seconds and 10 keyframes change in practice?

Specs are easier to judge when you picture a real project. Kling's comparison post uses a product video as its example of multiple keyframes, with a key visual moment set at several points along a 30-second timeline:

1. 0 seconds: a character enters the scene
2. 6 seconds: the product appears
3. 12 seconds: the camera moves into a close-up
4. 20 seconds: the scene shifts to the product in use
5. 28 seconds: the final campaign shot

With Kling 3.0, the same idea needed at least two separate clips, joined in an editor, and you could only pin down the first and last frames of each. With Kling 4.0, Kling says one generation can cover the whole sequence while keeping actions, camera movement, and mood connected.

That's also why longer clips need more control. Thirty seconds gives a model more room to drift, so the ability to set checkpoints matters more as videos get longer.

On Kling5 AI, the Kling 4.0 tool supports a first frame and an optional last frame, not the full multi-keyframe feature. You can still use the 30-second length and reference images to keep a product or character consistent across a longer clip.

What has Kling announced for Kling 4.0 that isn't live yet?

Some Kling 4.0 features were announced at launch but marked as coming later. These belong to the Kling 4.x line, not to a new generation.

• 10-bit high dynamic range (HDR) output. Kling's release notes say 10-bit HDR at 4K and 1080p is "coming soon."
• Extending videos up to two minutes. Kling's October 16 launch press release describes uploading an existing video and extending it up to two minutes. Launch coverage describes the extension feature as coming soon.

If you see a post saying "the next Kling will add HDR" or "two-minute videos," be careful. Those are already on Kling 4.0's roadmap.

What would Kling 5 need to beat?

Nobody outside Kuaishou knows what the next version will include. But Kling 4.0 sets a clear bar. To feel like a real upgrade, a successor would need to improve on at least some of these:

Areas where today's AI video still has room to grow include longer single takes, even more stable fast action, character consistency over long stories, and finer control over editing. Those are fair things to watch for, but they're not promises about any specific model.

When the next version will arrive is a separate question. We don't guess at it here; our Kling 5 release date tracker covers the timing question and is updated when there's news.

How should you read next-generation spec posts online?

With healthy skepticism. You'll find pages and social posts listing next-generation specs, such as 4K output, specific clip lengths, or character libraries. As of November 2026, none of these have been confirmed by Kuaishou or Kling, so treat them as unverified.

A few quick checks help:

1. Look for an official source. A real announcement will appear on Kling's own channels or in a Kuaishou press release.
2. Compare with Kling 4.0. Kling 3.0 already listed 4K, and Kling 4.0 already makes 30-second clips. A "new" spec that matches or trails Kling 4.0 is a red flag.
3. Watch for missing dates. Leaks rarely say when, where, or who announced them.
4. Check whether a "feature" is really 4.x. HDR and two-minute extensions were announced for Kling 4.0.

What can you use on Kling5 AI today?

Kling5 AI currently offers Kling 4.0 and Kling 3.0. The newest model readers can use there is Kling 4.0. Kling5 AI plans to add the next generation after Kuaishou officially releases it, but there's no date for that.

Here's what each tool on the site offers. These are Kling5 AI's own settings, which differ in places from the full feature lists Kling publishes.

The Kling 4.0 video generator on the site is built for longer clips, 21:9 framing, and reference-driven work. The Kling 3.0 video generator is the one to use for Motion Control, which copies movement from one motion video onto one character image. The prompt is optional, and the output length follows the reference video. Kling5 AI's Motion Control has no orientation switch.

Some features from Kling's official lists aren't offered on Kling5 AI. These include 4K output, more than two keyframes, a multi-shot storyboard interface, video editing or extension, an Elements library, and a Motion Control orientation switch.

How much does it cost to use Kling on Kling5 AI?

Kling5 AI uses credits. The tool shows the exact credit cost before you click generate, and it depends on the model, clip length, and resolution. Kling 3.0 costs fewer credits per second than Kling 4.0, so it's the budget choice for short clips. You can compare plans on the site's pricing page.

Should you wait for the next Kling or use Kling 4.0 now?

For almost everyone, use Kling 4.0 now. There's no official release date for its successor, no confirmed specs, and no way to know whether it will suit your work better. Projects you start today won't wait.

Match the model to the job:

1. Ads, trailers, and story scenes longer than 15 seconds: use Kling 4.0, which handles up to 30 seconds in one generation.
2. Wide, cinematic shots: use Kling 4.0 for 21:9.
3. Keeping a character or product consistent: use Kling 4.0 reference to video with your images and clips.
4. Animating a character with real motion: use Kling 3.0 Motion Control.
5. Short social clips on a budget: use Kling 3.0, which costs less per second.
6. Testing ideas fast: draft at 720p, then render your favorite at 1080p.

If a new model arrives later, your prompts and reference images will still be useful. The skills carry over.