LTX original · 768pAI PIXELL · 4K upscale
Mech Service Bay
Industrial maintenance hangar, white humanoid mech, engineers, sparks and steam.
Upscale LTX video to 4K · 8K · 16K
Clean up the low resolution and AI look of near-real-time LTX (LTX-2) footage with non-generative post-processing — up to 16K, without touching the original.
Where LTX video hits a quality ceiling
Lightricks LTX-2 shines on near-real-time speed and local (ComfyUI) use, but trading that speed for resolution and detail is where its quality limits show.
Low res for speed
To hit near-real-time generation, output tends to sit around 768p — put it on a big screen and pixel detail falls short.
Soft fine detail
Fast sampling leaves high-frequency detail in faces, hair and textures reading soft.
Frame flicker
Low step counts leave subtle inter-frame shimmer and noise behind.
What AI PIXELL does
Real resolution increase
Not stretching — it restores detail up to 4K, 8K and 16K (max 16K).
Non-generative, original untouched
The AI never repaints. Only existing information is sharpened — no face or detail distortion.
Noise & artifact cleanup
Removes diffusion residual noise, compression blocking and frame flicker via denoise.
No length limit · one-time purchase
15 seconds or an hour, no limit. A lifetime license instead of a subscription.
The blur disappears,
real detail comes back
Lift native 768p LTX footage to 4K and 8K — recovering soft detail and cleaning flicker.
LTX original · 768pAI PIXELL · 4K upscale
Mars Greenhouse
Glass habitat on Mars, pressure suit botanist, luminous blue flower, dust glow.
LTX original · 768pAI PIXELL · 4K upscale
Prism Chamber
White experimental room, levitating cubes, mirrored floor, clean refracted light.
How it works
STEP 01
Generate
Make your video with your usual AI model.
STEP 02
Upload
Load the exported file into AI PIXELL.
STEP 03
Set & preview
Pick resolution and model, then preview the result.
STEP 04
Export
Export at 4K, 8K or 16K and publish anywhere.
Where does the “AI look” come from?
Diffusion models build video by removing noise step by step. Structural flaws that never get fully removed remain in that process — and that is exactly what reads as the “AI look.” AI PIXELL cleans up only those traces, non-generatively.
Residual noise at the last step
The noise schedule fails to drive SNR to zero at the final denoising step, so tone gets trapped in mid-brightness and contrast is flattened. (WACV 2024)
Error accumulating each step
Estimation error compounds across steps (exposure bias), collapsing detail and distorting texture — worse with fewer steps. (ICLR 2024·2025)
High-frequency detail loss
Generated in a compressed latent then upsampled, fine detail like pores, fabric weave and hair gets smeared.
Plastic texture
Denoising toward an “average skin” erases texture while over-sharpening edges, giving a synthetic, CGI-like look.
Inter-frame flicker
An image-trained VAE decoder introduces subtle inter-frame shimmer when turning latents back into pixels.
Suppressed real-footage grain
Smoothing frames to stop face jitter also suppresses the sensor grain of real footage, so it reads plastic on playback.
Sources: “Common Diffusion Noise Schedules and Sample Steps are Flawed” (ByteDance, WACV 2024) · Exposure Bias in Diffusion Models (ICLR 2024·2025)
Beyond LTX 4K — up to 8K and 16K
Short-form, ads or exhibition — export the LTX footage you rendered locally at the resolution you need.
LTX 4K
768p LTX video to 4K. Standard quality for YouTube and social.
LTX 8K
8K detail for ads and large displays.
LTX 16K
Ultra-high 16K output for exhibition and projection mapping.
Who it's for
Designers & video editors
Anyone finishing generative sources to delivery quality.
YouTubers & creators
Publish short- and long-form in 4K for a competitive edge.
Companies & brands
Teams outputting bulk AI ad/campaign clips at consistent quality.
Every creator
Anyone who wants to erase the AI look and make video feel real.
Frequently asked questions
Can I upscale LTX video made in ComfyUI?
Yes. Just upload the mp4 or mov you exported from LTX (LTXV) in ComfyUI, and AI PIXELL upscales it to 4K, 8K and 16K with non-generative algorithms — it never re-generates the original, so faces and detail stay undistorted.
Do you support LTX 8K and 16K output?
Yes. With no length limit, you can export LTX footage at 8K and 16K.
Can it recover the resolution lost to speed?
It lifts output that stayed around 768p for near-real-time generation to true 4K detail, while cleaning up leftover noise and frame flicker.
Does it work as an LTX-2 Upscaler?
Yes. Regardless of version — LTX, LTX-2, LTXV — just upload the exported file.
What is the best way to improve LTX video quality?
Finish LTX footage with non-generative post-processing like AI PIXELL. It cleans diffusion noise and flicker while upscaling to 4K/8K/16K, raising quality without redrawing faces or details.
Can I try it for free?
Yes. A 14-day free trial lets you apply it to your LTX clips with no watermark, resolution, or count limits before you buy.
Can I process videos on my own PC without uploading them?
Yes. Everything runs on-device with no cloud upload, so unreleased project footage never leaves your machine.
Can I batch-process many clips with no length limit?
Yes. Process large batches with no length cap, on a one-time purchase (lifetime license) rather than a subscription.
Your fast LTX render just needs the quality to catch up
Restore the resolution you traded for speed at 4K, 8K and 16K. Start post-processing with AI PIXELL now.