A 4K AI video generator renders 3840x2160 frames directly, instead of stretching a 720p or 1080p clip after the fact. On Aura AI, native 4K with audio comes from Kling O3 4K and Kling V3 4K on the Premium plan, from Veo 3.1 (Starter or higher), LTX 2.3 (every plan) and Seedance 2.0; Wan 3.0 and Seedance 2.5 top out at 1080p and reach 4K through the AI video upscaler. This comparison covers what each route costs per clip, how long a clip can run, and when an upscale is good enough.
In This Article
Native 4K vs upscaled 4K
Native 4K means the model generates every frame at 2160p during the diffusion process. Kuaishou rolled out native 4K for Kling on April 27, 2026, and Lightricks rebuilt LTX 2.3 around a 2160p output path in March; both produce detail that was never present at a lower resolution, such as fabric weave, skin texture and small on-screen text. Upscaled 4K takes a 720p or 1080p render and reconstructs plausible detail with a second model. Done well, with Topaz Starlight Precise 2.5 or Gaia 2 in the Aura AI video editor, it holds up for landscapes, b-roll and product loops. It cannot invent a legible label or a sharp eyelash that the original frame blurred.
Check what "4K" means before you pay for it
Some products label an enlarged 720p render as 4K. The honest test is the frame: native 4K keeps fine text readable and edges clean at 100 percent zoom; an upscale looks smooth but soft. Every model below is marked native or upscaled.
4K AI video generators compared
Credits are from the model pages on this site and apply to the 4K tier unless noted. Kling 4K clips run 3 to 10 seconds in 16:9, 9:16 or 1:1.
| Model | 4K | Duration | Audio | Credits at 4K | Plan |
|---|---|---|---|---|---|
| Kling O3 4K | Native 3840x2160 | 3 to 10 s | Yes | 10 + 0.8/s: 5 s = 10, 10 s = 14 | Premium |
| Kling V3 4K | Native 3840x2160 | 3 to 10 s | Yes | 8 + 0.6/s: 5 s = 8, 10 s = 11 | Premium |
| Kling O3 4K Reference | Native, 4 reference images | 3 to 10 s | Yes | 12 + 0.9/s: 10 s = 17 | Premium |
| Veo 3.1 | Native | 4, 6 or 8 s | Yes | 8 s = 20 | Starter+ |
| LTX 2.3 | Native 2160p | 6 to 10 s (Fast: 6 to 20 s) | Yes, stereo | 10 s = 11 (Fast 7), Fast 20 s = 12 | Every plan |
| Seedance 2.0 | Native | 4 to 15 s | Yes, stereo | 8 s = 25 | Starter+ |
| Wan 3.0 / Prime | 1080p, then upscale | 5 s | Yes | 6 / 7 at 1080p, plus upscale | Starter+ |
| Seedance 2.5 | 1080p, then upscale | 4 to 15 s | Yes | 8 s = 15 at 1080p, plus upscale | Starter+ |
Fractions round up to the next whole credit and only successful generations are charged. The Kling 4K models are the only entries reserved for the Premium plan ($99/mo); everything else is reachable from Starter.
Kling O3 4K vs Kling V3 4K
Both are native 4K variants on the Kling page, both generate 3 to 10 second clips with native audio, both accept a start and an end frame, and both are Premium only. The difference is the line they come from.
Kling V3 4K: motion first
V3 4K is the Kling 3.0 line rendered at 2160p. Kling 3.0 is the model people pick for physically believable motion, hair, fabric and liquids, crowd scenes and action, and V3 4K keeps that character at four times the pixel count. It is also the cheaper of the two: 8 credits for 5 seconds plus 0.6 per extra second, so a 10 second 4K clip with sound is 11 credits.
Kling O3 4K: prompt adherence and multi-shot
O3 is Kling's omni line, tuned to follow long prompts precisely and to keep characters and lighting consistent across several shots inside one clip. O3 4K costs 10 credits for 5 seconds plus 0.8 per extra second, 14 credits for 10 seconds. It is the only 4K model on Aura AI with a reference-to-video version: Kling O3 4K Reference takes up to 4 images of a person or product and holds them steady at 2160p, for 12 credits plus 0.9 per second.
Which Kling 4K to use
Nature, sport, product turns and anything where the motion sells the shot: V3 4K. A scripted scene with two or three shots, exact staging, or a spoken line that must land on the right beat: O3 4K. A mascot, presenter or packshot that has to look identical across a series: O3 4K Reference.
Wan 3.0 and the upscale route
Wan 3.0 is in this comparison because searches for 4K often land on it, and it is worth being precise: on Aura AI, Wan 3.0 and Wan 3.0 Prime generate 5 second clips at 480p, 720p or 1080p with dialogue, music and ambience in one pass, for 6 credits (Prime 7) at 1080p. There is no 4K tier. What Wan 3.0 brings is the best faces and on-screen text in the Wan family, five aspect ratios, and a very low cost per clip, which makes it a good source for footage you then enlarge.
The upscale route is two steps. Generate at 1080p, then open the clip in the AI video upscaler and choose Starlight Precise 2.5 for live-action or Gaia 2 for animation. The upscaler goes 2x or 4x up to 3840x2160, removes compression noise and can interpolate 24 fps to 60 fps. The same path applies to Seedance 2.5, which stops at 1080p on Aura AI while its sibling Seedance 2.0 renders 4K natively at 5 credits plus 0.3 per second multiplied by four.
When the upscale is enough: establishing shots, landscapes, product loops, social clips viewed on a phone, background plates. When you want native 4K: a face in close-up, readable labels or UI, trade show walls and lobby screens, and footage that will be graded or cropped later.
Which 4K model to pick
- Cheapest native 4K: LTX 2.3 Fast, 5 credits for a 6 second 2160p clip with stereo audio, 7 for 10 seconds, 12 for 20, on every plan.
- Best motion at 4K: Kling V3 4K, 11 credits for 10 seconds, Premium.
- Multi-shot storytelling at 4K: Kling O3 4K, 14 credits for 10 seconds, Premium.
- Cinematic realism with audio, without Premium: Veo 3.1 at 4K, 20 credits for 8 seconds, from Starter.
- Longest native 4K clip: Seedance 2.0, up to 15 seconds with stereo sound and dance mode.
- Vertical 4K: every Kling 4K variant, LTX 2.3 and Veo 3.1 support 9:16.
If you produce a lot of 4K, draft the prompt on a 720p model, render the keeper on LTX 2.3 or Veo 3.1, and reserve Kling 4K credits for the shots that carry the piece. For everything else, the Topaz upscaler guide explains which enhancement model suits which footage.
How to generate 4K video in Aura AI
- Open Text to Video, or Image to Video to animate a still, and sign in. Every 4K model in this article lives in the same selector.
- Pick the model and the 4K tier. Kling O3 4K or Kling V3 4K render 4K by default (Premium). On Veo 3.1 choose 4K, on LTX 2.3 choose 2160p, on Seedance 2.0 choose 4K. The credit cost updates live as you change duration.
- Write the prompt for detail. 4K rewards texture and camera language: slow dolly across a foggy pine forest at dawn, shafts of light, birdsong and soft wind, 16:9, 10 seconds.
- Generate, preview and download the 4K MP4 with audio, without watermark. For a 1080p model such as Wan 3.0, send the clip to the video editor and upscale it to 4K.
Generate native 4K AI video
Kling O3 4K, Kling V3 4K, Veo 3.1, LTX 2.3 and Seedance 2.0 in one studio, with native audio and no watermark. Upscale any other model to 4K in the video editor.
Open Text to VideoFrequently Asked Questions
Which AI video generator makes native 4K?
On Aura AI, Kling O3 4K and Kling V3 4K render native 3840x2160 in 3 to 10 second clips with audio on the Premium plan. Veo 3.1 outputs native 4K in 4, 6 or 8 second clips from the Starter plan, LTX 2.3 renders true 2160p on every plan, and Seedance 2.0 generates 4K in clips up to 15 seconds. Wan 3.0 and Seedance 2.5 stop at 1080p.
What is the difference between Kling O3 4K and Kling V3 4K?
V3 4K is the Kling 3.0 line at 4K, built for motion realism, and costs 8 credits for 5 seconds plus 0.6 per extra second. O3 4K is the omni line, tuned for prompt adherence and multi-shot consistency, at 10 credits plus 0.8 per second, and it has a reference-to-video version that takes up to 4 images. Both generate native audio, run 3 to 10 seconds and require the Premium plan.
Does Wan 3.0 generate 4K video?
Not on Aura AI. Wan 3.0 and Wan 3.0 Prime generate 5 second clips at 480p, 720p or 1080p with native audio, for 6 or 7 credits at 1080p. To get 4K from Wan 3.0, generate at 1080p and run the clip through the AI video upscaler in the video editor, which enlarges it up to 3840x2160 with Topaz Starlight Precise 2.5 or Gaia 2.
How many credits does a 4K AI video cost?
It depends on the model and length. A 10 second native 4K clip is 7 credits on LTX 2.3 Fast, 11 on LTX 2.3 or Kling V3 4K, 14 on Kling O3 4K and 17 on Kling O3 4K Reference. An 8 second 4K clip is 20 credits on Veo 3.1 and 25 on Seedance 2.0.
Is upscaled 4K as good as native 4K?
For landscapes, b-roll, product loops and clips watched on a phone, a Topaz upscale from 1080p is usually indistinguishable. Native 4K wins when the frame contains fine text, a face in close-up or detail that will be cropped or graded later, because the upscaler reconstructs plausible detail rather than generating it. If in doubt, generate the hero shot natively and upscale the rest.