Real AI video
Native sound
Prompt: A golden retriever runs along a beach at sunset, waves crashing, it barks happily at the camera.
Make one with Kling 4.0Kling's newest model, up to 30 seconds
Kling 4.0 AI Video Generator
Write a scene, or start from your own first and last frame, and get one continuous take of up to 30 seconds with native sound, at 720p or 1080p.
Pay per render · exact credit total shown first · credits never expire
New
Kling 4.0 at a glance
Input
Text, or first/last frames
Length
3–30s
Quality
720p · 1080p
Audio
Generated with video
Up to 30 secondsNative soundFirst & last frame
Made with Kling 4.0
One real clip from Kling 4.0, made from nothing but the prompt
The clip is 3 seconds at 720p from Kling 4.0, with the sound the model generated. Tap to hear it. The prompt under each clip is the literal prompt that made it.
Kling 4.0 is Kuaishou's newest video model, now in the TalkPix AI Video studio. Its headline change over Kling 3.0 is length: a single take runs from 3 to 30 seconds instead of 15, so a scene can play out without being stitched together. Sound is generated with the picture. It costs 6 credits per second at 720p and 9 at 1080p, paid from one-time credit packs, with no subscription.
Longer scenes in one take
Up to 30 seconds in a single render: a walk-through, a product reveal, a short story beat.
Clips that need their own sound
Footsteps, waves, engines, a bark or a crowd are generated with the video, so the clip is ready to post.
Starting from your image
Upload a first frame, and optionally a last frame, and describe what happens in between.
Model comparison
Choose the right AI video model
All 11 options are visible in one TalkPix studio, so you can compare capability and price before generating.
| Model | Use cases | Length | Quality | From | Open |
|---|---|---|---|---|---|
| P-Video 2 Pro | Sharp, natural motion with generated sound, ready in about half a minute. | 5–15s | 480p, 720p | 1 cr/s | P-Video 2 Pro guide |
| Seedance 1.0 Pro Fast | ByteDance's fast Seedance 1.0 Pro: the lowest price for a 720p or 1080p clip. Picture only, no sound. | 3–12s | 720p, 1080p | 1 cr/s | Seedance 1.0 Pro Fast guide |
| Seedance 1.5 Pro | Fast, affordable clips with generated sound. | 4–12s | 480p, 720p, 1080p | 1 cr/s | Seedance 1.5 Pro guide |
| Seedance 2.0 Mini | Affordable native-audio motion for drafts and frequent posting. | 4–15s | 480p, 720p | 2 cr/s | Seedance 2.0 Mini guide |
| Seedance 2.0 | Advanced motion, prompt accuracy, native sound, and output up to 4K. | 4–15s | 480p, 720p, 1080p, 4K | 4 cr/s | Seedance 2.0 guide |
| Seedance 2.5 | Best consistency for complex actions, identity, and longer final clips. | 4–30s | 480p, 720p | 5 cr/s | Seedance 2.5 guide |
| Hailuo 2.3 | MiniMax Hailuo 2.3 animates your photo with lifelike motion and expressions, in 6 or 10 second clips at a budget price. | 6–10s | 720p | 2 cr/s | Hailuo 2.3 guide |
| MiniMax H3 | Reference-driven video up to 2K at the lowest 2K credit rate. Includes generated sound. | 4–15s | 720p, 2K | 4 cr/s | MiniMax H3 guide |
| Veo 3.1 Fast | Google's Veo 3.1 Fast: spoken lines, sound effects and ambience generated with the picture, at 720p or 1080p for the same rate. | 4–8s | 720p, 1080p | 4 cr/s | Veo 3.1 Fast guide |
| Kling 3.0 | Premium motion, consistency, multi-shot quality, and native sound. | 3–15s | 720p, 1080p, 4K | 6 cr/s | Kling 3.0 guide |
| Kling 4.0Current | Kling's newest model: cinematic motion and native sound in one take of up to 30 seconds, from text or a first and last frame. | 3–30s | 720p, 1080p | 6 cr/s | Kling 4.0 guide |
How it works
Create with Kling 4.0
1
3 to 30 seconds
Pick any whole-second length; the credit total updates before you render.
2
Native synchronized sound
Kling 4.0 always generates audio with the picture; it is not charged separately.
3
Exact preflight cost
6 credits per second at 720p: a 10-second clip is 60 credits, a 30-second one 180. A render that fails is refunded automatically.
Prompt example
A golden retriever runs along a beach at sunset, waves crashing, it barks happily at the camera.
Try this modelTransparent credits
Kling 4.0 pricing in TalkPix
720p
6 credits per second
5 seconds = 30 credits
1080p
9 credits per second
5 seconds = 45 credits
Model line-up and credit rates last updated October 23, 2026.
FAQ
Questions about Kling 4.0
What is Kling 4.0?
Kling 4.0 is the newest AI video model from Kuaishou's Kling team. It turns a text prompt, or a first and last frame, into a video with native sound, and it renders up to 30 seconds in one take.
How is Kling 4.0 different from Kling 3.0?
The biggest practical difference is length: Kling 4.0 renders up to 30 seconds in one take, Kling 3.0 up to 15. On TalkPix Kling 4.0 also accepts a first and last frame, while Kling 3.0 runs from a prompt only. Kling 3.0 keeps a 4K option that Kling 4.0 does not have here.
How much does Kling 4.0 cost on TalkPix?
6 credits per second at 720p and 9 at 1080p. A 5-second 720p clip is 30 credits. Credits come in one-time packs that never expire; there is no monthly plan, and the exact total is shown before anything renders.
Does Kling 4.0 make sound?
Yes. Every Kling 4.0 clip comes with generated audio: ambience, effects and voices that match the scene. Describe the sound you want in the prompt.
Is there a Kling 4.0 alternative that costs less?
If the clip does not need sound, Seedance 1.0 Pro Fast costs 1 credit per second at 720p. For a short clip with sound, P-Video 2 Pro starts at 1 credit per second. All of them are in the same studio.
Ready to generate with Kling 4.0?
Open the studio with this model selected. Review the exact credit total before any render starts.
Open Kling 4.0