Kling 4.0 — AI video generator
Kling's newest model, clips up to 30 seconds with native audio
Kling 4.0 is the latest generation of Kling's video model, and the first on Vixlens to run a single clip as long as 30 seconds. Write a prompt on its own, guide it with reference images and clips, or pin the shot between a first and last frame — sound is generated with the picture every time.
What Kling 4.0 is good at
- Any length from 3 to 30 seconds in one clip
- Up to ten reference images and five reference clips, called from the prompt as @image_1, @video_1…
- First and last frame control for shots that must start and end on exact images
- Native audio on every clip, at 720p or 1080p
What people use it for
- Longer story beats and product walk-throughs that don't fit in 10 seconds
- Keeping the same character, outfit or product across a clip from reference stills
- Transitions and reveals that have to land on a precise final frame
Kling 4.0 specifications
- Duration
- 3–30s
- Resolution
- 720p, 1080p
- Aspect ratios
- auto, 16:9, 9:16, 1:1, 21:9
- Audio
- Not supported
- Reference image
- Optional
- Reference images
- Up to 10
- Last frame
- Supported
Plan limits apply on top of these — see pricing.
Example prompts for Kling 4.0
Written for this model in particular. Open one in the composer and edit it from there.
“A chef plates a dessert in a quiet restaurant kitchen, the camera circling slowly as sauce, crumble and a single mint leaf go down, low murmur of the dining room behind”
Try this prompt“A cyclist climbs a mountain pass in the early morning fog, switchbacks unfolding below, breathing and the click of gears as the sun breaks through”
Try this prompt“A street musician tunes a cello under a railway bridge at night, then starts to play as a train rumbles overhead”
Try this promptKling 4.0 FAQ
- What is Kling 4.0?
- Kling 4.0 is an AI video model from Kling, available on Vixlens. Kling 4.0 is the latest generation of Kling's video model, and the first on Vixlens to run a single clip as long as 30 seconds. Write a prompt on its own, guide it with reference images and clips, or pin the shot between a first and last frame — sound is generated with the picture every time.
- How long can a Kling 4.0 clip be?
- Kling 4.0 generates clips of 3–30s.
- What resolution does Kling 4.0 output?
- Kling 4.0 outputs at 720p, 1080p on Vixlens.
- Does Kling 4.0 generate audio?
- No — Kling 4.0 generates picture only. Several other video models on Vixlens do generate native audio.
- How much does Kling 4.0 cost?
- Generating needs a plan — there is no free tier. Starter is $10/month for 1,000 credits (launch offer: $6/month for the first 20 Starter subscribers, locked in while they stay subscribed). Credits are spent per generation based on the model, resolution and duration, and the exact cost is shown before you generate.
Other video models on Vixlens
Seedance 2.5
Long-form AI video with reference control and native audio
ByteDanceSeedance 2.0
1080p AI video with multi-subject references and motion from a clip
ByteDanceSeedance 2.0 Mini
The cheapest way to test a video idea before committing credits
GoogleVeo 3.1
Google's flagship video model, with synchronized audio at up to 4K
GoogleVeo 3.1 Fast
Veo 3.1 quality at lower latency, for iterating on a shot
Black Forest LabsFlux 3 Video
Black Forest Labs' first video model, with a fast draft mode
Start generating with Kling 4.0
Every model on one credit balance — pick a plan and start creating.