Upscale Wan video to 4K · 8K · 16K

Clean up the residual noise, flicker and softness of Wan footage rendered locally in ComfyUI with non-generative post-processing — up to 16K, without touching the original.

Where Wan video hits a quality ceiling

Wan is an open-weight model you can generate with for free and unlimited, but running it on local GPUs leaves clear limits in output quality.

Low-res local output

VRAM limits push many to render at 720p–1080p, so detail is missing from the start.

VRAM-limited flicker

Trimmed settings to save memory make inter-frame shimmer and flicker stand out.

Few-step residual noise

Fewer sampling steps for faster runs leave residual noise and smeared, soft textures.

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 low-res Wan footage to 4K and 8K — cleaning residual noise and restoring detail.

Fox Shrine Night — Wan original · 720p / AI PIXELL · 4K upscale
Wan original · 720pAI PIXELL · 4K upscale

Fox Shrine Night

Lantern-lit shrine, silver-haired heroine, glowing fox spirit, falling snow.

Mountain Bridge Duel — Wan original · 720p / AI PIXELL · 4K upscale
Wan original · 720pAI PIXELL · 4K upscale

Mountain Bridge Duel

Misty gorge bridge, poised martial artist, ink-wash clouds, robe folds.

Harbor Tram Twilight — Wan original · 720p / AI PIXELL · 4K upscale
Wan original · 720pAI PIXELL · 4K upscale

Harbor Tram Twilight

Futuristic harbor tram, school coat, sketchbook, dusk reflections and lanterns.

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 Wan 4K — up to 8K and 16K

Take clips generated unlimited on your local rig and finish them at the resolution you need.

Wan 4K
720p–1080p Wan video to 4K. Standard quality for YouTube and social.
Wan 8K
8K detail restored for ads and large displays.
Wan 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 Wan video made in ComfyUI?
Yes. Just upload the Wan mp4 or mov exported from your local ComfyUI workflow, and AI PIXELL upscales it non-generatively to 4K, 8K and 16K. No workflow changes needed — you only post-process the finished file.
Can low-res Wan footage still reach 4K?
Yes. Wan clips generated at 720p–1080p are lifted to 4K, 8K and 16K with non-generative algorithms — it never re-generates the original, so detail stays undistorted.
Does it work as a Wan 2.2 Upscaler?
Regardless of version — Wan 2.1, Wan 2.2 — just upload the exported video file. It works across model versions.
Can it reduce residual noise and flicker from few-step runs?
It cleans up the residual noise, frame flicker and excess softness left by fewer sampling steps to make footage read more real.
What is the best way to improve Wan video quality?
Finish Wan 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 Wan 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.

Complete the last step of your Wan footage's quality

Turn locally rendered Wan output into 4K, 8K and 16K. Start post-processing with AI PIXELL now.

ProductFeatureUse CaseAbout 4BY4SupportPricingLoginFree Download