Vlogs
Selfie-angle talk to camera on a busy street.
No sign-up · 1 free video every 24 h
Free Kling 4.0 AI Video Generator
This Kling 4.0 AI video generator turns a prompt or a photo into up to 30 seconds of video with sound built in, at up to 1080p, in 21:9, 16:9, 9:16 or 1:1, steered by up to 10 reference images.
Example prompts
What's new in Kling 4.0
Kling 4.0, also written Kling 4, Kling4.0 or Kling AI 4.0, is the newest AI video generator model from Kling AI: one prompt in, up to 30 seconds of video with sound out. The large figures are Kling's published specs, and the note under each says whether you can use it on Kling4. For quicker, cheaper drafts Kling also offers Kling 4.0 Flash, capped at 20 seconds and 720p.
- Longest take
- Demo by Kling AI
- 30 s
- On Kling4: any length from 3 to 30 seconds, in 1-second steps, on a paid plan. Kling 3.0 stopped at 15.
- Sound
- Demo by Kling AI
- Built in
- On Kling4: every clip arrives with generated audio, and there is no switch to turn it off.
- Spoken languages
- Demo by Kling AI
- 9
- Chinese, English, Japanese, Korean, Spanish, Portuguese, German, French and Hindi, per Kling's guide. Same model on Kling4; we haven't tested all nine.
- Inputs
- Demo by Kling AI
- Text, images, clips
- On Kling4: a prompt alone, a first frame with an optional last frame, or a reference set of three or more images or a clip.
- Reference assets
- Demo by Kling AI
- 15
- Kling's per-task cap across images, clips, voice profiles and elements. On Kling4: up to 10 images, or images plus one reference clip.
- Keyframes
- Demo by Kling AI
- 10
- Kling's app only, with frames anywhere on the timeline. On Kling4 you set a first frame and, optionally, a last frame.
- Resolution
- Demo by Kling AI
- 4K
- Kling's own app only. Kling4 renders 720p or 1080p, the ceiling of the API it runs on.
- Aspect ratios
- Demo by Kling AI
- 4
- On Kling4: 21:9 (new in 4.0), 16:9, 9:16 and 1:1. The no-login trial offers 16:9, 9:16 and 1:1; Kling's app adds Auto.
- Dynamic range
- 10-bit HDR
- Not live anywhere yet. Kling marks HDR at 1080p and 4K as coming soon, with no date. Not on Kling4.
- Prompt length
- 2,500 chars
- Kling4's cap per prompt. Kling's own app accepts up to 8,000 tokens.
- Editing and extension
- Kling app
- Not on Kling4. Kling's app edits existing clips, and extension to 2 minutes is still marked coming soon.
- Released
- Oct 15, 2026
- Open to everyone from this date. Kling 4.0 Flash reached a small early-access group on September 28.
Specs from Kling AI's Kling 4.0 user guide (October 26, 2026) and release note, checked November 3, 2026. The full timeline and each feature in detail: Kling 4.0 release date and specs.
Clips: demos by Kling AI from its Kling 4.0 release page, not videos made on Kling4.
Videos from the Kling 4.0 AI video generator
The first clip was made on Kling4: Kling 4.0, 10 seconds, 720p, from the prompt on its card, so "Use this prompt" gives you the same starting point. The other five are Kling AI's launch demos and were not made here. The rant and the vlog came from text alone, so their prompts also drop straight into the generator above. The sneaker ad started from three product photos, which Kling4 also accepts as a reference set. The felt lesson and the jacket pitch each used one reference image, which Kling4 would read as a first frame instead. For more prompts shown with the clips they made, browse the Kling 4.0 prompt library.
Lighthouse keeper in a storm
Generated on Kling4 with Kling 4.0 from the prompt shown: 10 seconds at 720p, sound included, no reference images.
A lighthouse keeper in a yellow oilskin climbs a spiral iron staircase holding a lantern while a storm pounds the windows. At the top he pulls a lever and the great lens begins to turn, throwing a beam across the black sea. The camera follows him up, then pulls back outside to show the lighthouse in the storm. Sound: thunder, driving rain, creaking iron, the lamp humming on.
Use this prompt
Made on Kling4 · Kling 4.0, 10 s, 720p
Six words in, a 15-second rant out
Prompt An old man ranting about AI.
Vlogger says hello
Prompt A vlogger-style video in which the woman cheerfully introduces herself to the audience. Maintain a natural, authentic look and realistic image quality.
Sneaker ad from three product photos
Felt forest lesson in five cuts
Prompt SCENE CONTEXT: EXACTLY 3 UNIQUE CHARACTERS ACROSS THE VIDEO — NO DUPLICATES.EXT. Enchanted counting forest classroom, warm morning. One soft cream cloud teacher teaches the numbers 1, 2, 3 and 4 in four separate shots. Two tiny yellow chick pupils appear only in the number-two shot.3 characters across the video, 5 hard-cut shots, 15s, real time. @Image1: visual-world reference only — handmade clay-and-felt materials, rounded toy-like forms, pastel forest trunks, mossy ground, rainbow colours, warm diffused backlight and shallow storybook depth. Never inherit its existing characters, numerals or composition. LOCATION MAP: All five shots occur on the same circular moss stage inside one enchanted forest classroom.One broad warm-brown tree trunk anchors frame-left; a second tree trunk anchors frame-right. A curved pastel rainbow root crosses the background. The central teaching pedestal remains in the same position in every shot. …
Vertical jacket pitch in one take
Prompt 1. SCENE CONTEXT EXACT 1 HUMAN CHARACTER — NO DUPLICATES. A woman enthusiastically presents the black Kling cropped puffer jacket she is wearing inside a minimalist fashion showroom. She maintains warm, confident eye contact with the camera while demonstrating the collar, chest logo, quilted construction, cropped silhouette, and pockets. One continuous 15-second vertical fashion shot.2. ACTIVE REFERENCES@image1 controls the woman’s exact identity, straight brown hair, blue eyes, small earrings, black Kling cropped puffer jacket, high collar, silver zipper, white chest logo, quilted panels, elastic cuffs, side pockets, loose blue jeans, black belt, showroom racks, window, and vertical composition. Preserve every detail exactly. 3. LOCATION MAP: The woman remains centered between two clothing racks. The left rack stays behind frame-left, the second rack remains in the rear-right, and the large window stays on frame-right. …
Write the scene.Kling 4.0 shoots it, sound and all.
What you can create with the Kling 4.0 AI video generator
One AI video generator covers talking-head vlogs, vertical drama, fight scenes and stop-motion looks. Each card is a Kling AI demo; in the generator above, start from a prompt or a photo.
The clips on the four cards under the generator and in this row are demos by Kling AI, taken from the Kling 4.0 release page and the Kling 3.0 user guide. They were not made on Kling4.
How the Kling 4.0 AI video generator works
This page is a Kling 4.0 AI video generator for text to video that runs in your browser, so you can use Kling 4.0 online without installing anything. Starting from a photo instead? Kling 4.0 image to video has its own upload flow.
Write the shot
Describe one scene in plain sentences: who is in frame, what they do, how the camera moves and what we should hear. Put spoken lines in quotes. A prompt can run to 2,500 characters.Choose length, ratio and resolution
Signed out, length and quality are fixed at 5 seconds and 720p, and you pick 16:9, 9:16 or 1:1. On a paid plan, set anything from 3 to 30 seconds, 720p or 1080p, and 21:9 as well.Generate once without signing up
Click Create. A Cloudflare check runs in the background, then your clip waits in a short queue behind paid runs. Nothing starts until you click, and one clip per 24 hours is free.Watch, then download
The finished clip plays in place, sound included. Log in to download it without the watermark and keep it in your video library. Logging in while you wait also skips the queue.Upgrade when you need more
Past the trial, Kling 4.0 costs 3 credits per second at 720p and 5 at 1080p. A 10-second 1080p clip is 50 credits; a full 30-second take is 150.
Kling 4.0 free vs paid
Free use of the Kling 4.0 AI video generator comes in two forms here: the no-login trial and a free account. Only the trial generates video, and the account is what unlocks a clean copy of that clip.
| — | No account | Free account | Paid plan or pack |
|---|---|---|---|
| Price | $0 | $0, no card | Plans from $13/mo billed yearly; Kling 4.0 packs from $49.9 |
| Kling 4.0 videos | 1 per 24 h, per IP and per device | Not included | As many as your credits cover |
| Length | 5 s | — | 3–30 s |
| Resolution | 720p | — | 720p or 1080p |
| Aspect ratio | 16:9, 9:16, 1:1 | — | 16:9, 9:16, 1:1, 21:9 |
| Credits per second | None | — | 3 at 720p, 5 at 1080p |
| Watermark | Yes | Your trial clip downloads without it | No |
| Queue | Short queue, paid runs first | Logging in mid-queue starts your trial at once | Priority; Fast speed on Pro and Premium |
| Videos at once | 1 | — | 1 on Lite or a pack, 4 on Pro, 8 on Premium |
| Commercial use | No | No | Pro, Premium, yearly Lite and every pack |
Prices and limits as listed on November 3, 2026. The Starter pack does not include Kling 4.0. Plan sizes, every credit pack and the cost of a typical clip are on the Kling 4.0 pricing page.
Kling 4.0 FAQ
Is Kling 4.0 free?
Partly. Without an account the Kling 4.0 AI video generator makes one video every 24 hours: 5 seconds, 720p, with a watermark. Logging in afterwards lets you download that same clip without the watermark, still at no cost. Longer or 1080p clips need credits from a plan or a credit pack, charged at 3 credits per second for 720p and 5 for 1080p.
Do I need an account to use Kling 4.0?
No, not for one clip a day. Type a prompt in the box at the top of this page, pass the automatic Cloudflare check, and your Kling 4.0 video joins a short queue with no sign-up form. An account becomes useful afterwards: it lets you download the clip without the watermark, skip the queue, and buy credits for longer or 1080p runs.
How long can Kling 4.0 videos be?
A single Kling 4.0 generation runs from 3 to 30 seconds, set in whole seconds. On Kling4 the full range comes with any paid plan or Kling 4.0 credit pack, at 720p or 1080p; the no-login trial is fixed at 5 seconds. Kling has announced extending clips to 2 minutes, but that is still marked coming soon and isn't offered here.
What is the free daily limit?
One video in any rolling 24 hours, without an account. The count follows both your IP address and your device, so switching browsers or clearing cookies won't unlock a second clip, and it doesn't reset at midnight. If the safety check blocks a prompt before rendering starts, that attempt isn't counted (up to three times), so you can try different wording.
Is Kling4 the official Kling website?
No. Kling4 is an independent site and is not affiliated with Kuaishou or Kling AI; Kling AI's own app is at kling.ai. Kling4 is a Kling 4.0 AI video generator that runs the model through the official Kling API and adds its own free trial, plans and video library. A few features exist only in Kling's app, including 4K output, multi-keyframe timelines and video editing.
Can I use the videos commercially?
Yes, if your purchase includes it. Pro and Premium cover commercial use on monthly and yearly billing, Lite covers it only when billed yearly, and every credit pack covers it too. Trial clips and free-account downloads aren't licensed for commercial work. Under our Terms of Service you own what you generate, but you still need rights to what you feed in, such as a real person's likeness or a brand.