Topaz Video AI Denoise (Nyx Model) Review 2026: Settings, Tests & Best Alternative
- Updated on 2026-04-28
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Table Of Content
If you came here to denoise video in Topaz Video using the Nyx model, you're in the right place. I’ll show the exact settings I use for Topaz Video Denoise, when to pick the pure Denoise filter, and how to avoid common artifact. I'll also share a practical Topaz alternative I keep in my toolkit—UniFab Denoise AI—for times when I want similar denoising quality with less setup and a lighter price.
Topaz Video $299/Year Too Expensive—or Too Much Tuning?
The UniFab Solution: Cheaper and Equal Powerful High-Quality Denoising
Topaz Nyx Model shine on high‑ISO, high‑res footage, but dialing them in can take time. When I'm processing everyday clips and don't want to babysit parameters—or commit to an annual plan—I’ll often run UniFab Denoise AI side‑by‑side: it gives me clean, natural results with a one‑click preset and no watermark during the trial.
Side‑by‑side example
For more details, see this part: [Performance Comparison: Topaz Nyx Model vs UniFab Denoise AI]
Quick comparison table
Here's a clear comparison table between Topaz Nyx Model and UniFab Denoise AI based on basic information. For more info, this article UniFab vs Topaz has conducted a detailed comparison of each function.
| Feature | Topaz Nyx Model | UniFab Denoise AI |
| Ease of Use | Complex – Requires understanding of AI model selection and video settings | Easy – Beginner-friendly interface with one-click presets |
| Trial Availability | Limited – Watermarked trial with feature restrictions | Full-featured 30-day free trial with no watermark |
| Price | $299 (Annually) for Topaz Video AI (include Nyx Model and others) |
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| Platform Support | Windows, macOS | Windows, macOS |
What Is Topaz Video Denoise?
Topaz Video Denoise (also called "topaz denoise video") is the AI-driven noise-reduction workflow inside Topaz Video AI. It uses dedicated machine-learning models — Nyx for sensor noise / grain, Artemis for compression artifacts — to clean footage while preserving real texture and detail.
Unlike traditional spatial or temporal denoise filters that apply a global blur, the Topaz approach analyzes each frame to separate genuine image structure from noise patterns. That's why Nyx can lift heavy ISO grain off a night shot without turning skin into plastic.
Core capabilities of the Topaz video denoise workflow:
- AI-powered models (Nyx, Artemis) for different noise types
- Combined denoise + 4K/8K upscaling, deinterlacing, frame-rate conversion in a single pass
- Artifact removal: blockiness, mosquito noise, chroma noise from heavily compressed sources
- Per-clip controls: denoise strength, detail recovery, sharpening, dehalo
Topaz Nyx Model Overview
When people say "the Nyx model" in video editing, they almost always mean this: the Topaz Video AI Nyx noise-reduction engine, designed for noisy, high-resolution footage shot in low-light or high-ISO conditions. Nyx separates noise from real textures so night shots, available-light interiors, and underexposed clips can be cleaned without flattening detail.
Nyx runs at 1× (preserve original resolution) or pairs with upscaling for a complete restoration pass.
Key Features & Use Cases
- Low-light and high-ISO footage — heavy sensor noise in night cityscapes, concerts, weddings, indoor events
- Detail-preserving denoise — targets noise patterns while keeping hair, fabric, and skin texture intact
- Compression and artifact cleanup — reduces blocky compression and chroma noise on highly compressed clips
- GPU-accelerated processing — uses NVIDIA CUDA and Apple Metal for faster previews and renders
- Manual fine-tuning — denoise / detail / sharpening sliders for precise control
Nyx Versions and Modes (v2, v3, Nyx XL, 1× vs 2×)
Topaz iterates Nyx across releases, so the variant available to you depends on your Topaz Video AI build. The current 2026 lineup typically includes:
| Variant | Purpose | Best For |
| Nyx (1× mode) | Pure denoising at original resolution | Cleanup without upscaling |
| Nyx (2× / upscaling mode) | Denoise + resolution boost | Noisy HD/SD → 4K |
| Nyx Fast | Streamlined for speed | Long projects, faster previews |
| Nyx XL | Maximum quality denoise | Challenging clips, top-tier output |
Reference: Topaz Labs documentation — names and behavior change between releases, so always check the in-app description for your build.
When to Use Nyx vs Other Topaz Models
| Model | Best For | Typical Use |
| Nyx | Heavy noise / grain in low-light or high-ISO video | Night scenes, handheld event footage, noisy smartphone clips |
| Artemis | Compression artifacts and low-quality sources | Blocky streaming downloads, low-bitrate web video |
| Iris / Rhea | Fine detail and general enhancement | Face refinement, sharpening cleanup after denoise |
Performance Tests of the Topaz Nyx Model
I ran Nyx through controlled tests on real footage. All results below are from the same hardware and clip set — nothing cherry-picked.
Test System
- GPU: NVIDIA GeForce RTX 4070
- CPU: AMD Ryzen 7 5700G with Radeon Graphics
Test Footage
- Duration: 30 s
- Resolution: 1920 × 1080 (Full HD)
- Frame rate: 24 fps
- Output target: 4K
Nyx Denoising Quality Analysis
Nyx delivered excellent noise reduction across diverse scenes. Grain and compression artifacts were effectively removed while natural textures and fine details survived. Unlike some denoisers that over-smooth into a "plastic" look, Nyx maintained realistic image quality — particularly noticeable on skin and fabric.
Performance Metrics
- Processing time: 2 min 37 s
- Processing speed: 4.59 fps
However, the Nyx model's processing speed is relatively slow compared to other denoise models, requiring more time to complete the task—particularly on higher-resolution footage.
How to Use Topaz Denoise Video (Step-by-Step)
The following steps show how to use Topaz Video AI to perform Topaz video denoise on noisy or low-resolution clips. This walkthrough focuses on the Topaz Nyx model so you can remove noise and sharpen video frames with clear, repeatable settings.
Import Your Noisy Video
Open Topaz Video AI and load your noisy clip, whether it was shot on an older phone, DSLR, or even VHS.
Choose an AI Model (Nyx or Artemis)
In the Enhancement panel, choose Nyx for heavy noise and grain or Artemis if the footage mainly suffers from compression and blocky artifacts.
Adjust Denoise and Detail Settings
Use the Denoise, Recover Detail, Sharpen, and Dehalo sliders to balance noise reduction and texture. Many users start with a mid-range denoise value and then fine-tune depending on motion and lighting in the scene.
Preview Before You Export
Run a short preview to compare the original and processed frames side by side.
Export the Enhanced Video
Once you’re satisfied, choose your output resolution, codec, and format, then export the enhanced video.
Pros and Cons of Topaz Video Denoise Nyx Model
Pros of Topaz Denoise Video
- Effective on heavy noise — Nyx removes high-ISO grain and low-light noise that simpler tools can't touch
- Temporal stability — flicker, grain, and noise reduction stay consistent across frames with minimal motion artifacts when tuned correctly
- Detail preservation — when balanced, Nyx keeps hair, fabric, and skin texture better than most traditional denoisers
- AI-powered fine-tuning — granular control over denoise strength, detail recovery, and sharpening for different luminance/chroma/film grain noise
- Non-destructive workflow — Topaz processes a copy of your source; original stays intact
- HD and 4K capable — handles high-resolution post-production work, GPU permitting
Cons of Topaz Denoise Video
- Expensive — $299/year subscription (Topaz killed the perpetual license in October 2025)
- Complex UI — preserving detail takes trial-and-error; not fully automatic
- Demands strong GPU — Topaz officially recommends NVIDIA RTX 30-series with ≥ 8 GB VRAM
- Slow — Nyx is 2-3× slower than Topaz's Standard and Low Light models on RTX 4090 and M2 Max
- No batch processing — Nyx isn't ideal for bulk volume work
- Occasional over-smoothing — aggressive settings flatten fine detail, especially on skin and shadow
Topaz Pricing & Trial (2026 Subscription)
In October 2025 Topaz Labs retired the perpetual license. As of 2026 every new buyer is on a recurring subscription.
| Plan | Price | Includes |
| Personal | $299/year | Nyx, Artemis, Proteus, Iris, Rhea + standard local models |
| Pro | $699/year | Commercial rights, advanced features, priority cloud rendering |
| Topaz Studio Bundle | ~$33/mo annually | Adds Photo AI and Gigapixel |
Free Trial — Topaz offers a free demo (no credit card needed). Catch: every exported clip is watermarked. You can preview model behavior and test hardware speed, but you can't ship production work from the trial.
The one-time $299 perpetual license is no longer available for new users. Continued access to Nyx (and any model updates) requires an active subscription.
Best Alternative to Topaz Nyx: UniFab Denoise AI
If you want Topaz video ai denoise quality at faster speed and lower long-term cost, UniFab Denoise AI is the most direct alternative. Two purchase paths:
- UniFab Denoise AI standalone — $139.99 lifetime
- UniFab All-In-One — $319.99 lifetime, bundles Denoise AI plus 21 other tools (Upscaler / HDR Upconverter / Face Enhancer / Stabilizer / Smoother / Subtitle Generator / Translator / Background Remover / Vocal Remover and more)
UniFab Denoise AI uses the Silens Standard / Silens Fast AI models, runs on Windows and macOS (Intel + Apple Silicon), supports NVIDIA 50-series GPUs, and falls back to FabCloud cloud processing when your local GPU isn't enough — something Topaz doesn't offer at all.
Key Highlights
- Cleans low-light, high-ISO, and camera-artifact footage with one-click presets
- AI-powered interface for sharp, clean output without parameter babysitting
- NVIDIA 50-series GPU support for faster processing
- Customizable output — resolution, format, codec controls when you want them
- 30-day full-feature trial — no watermark on output (Topaz's trial watermarks every export)
Best Topaz Alternative: UniFab Denoise AI
- Professional noise reduction on par with Topaz
- Supports up to 4K upscaling
- More affordable than Topaz
- 30-day free trial with full features, no watermark
UniFab Denoise AI
Performance Comparison: Topaz Nyx Model vs UniFab Denoise AI
I ran identical 50-second 720p source clips through Topaz Nyx, Topaz Artemis, and UniFab Denoise AI on the same hardware to a 4K target.
Test Environment
- GPU: NVIDIA GeForce RTX 4070
- CPU: AMD Ryzen 7 5700G
- Source: 50 s, 30 fps, 1280 × 720
- Target: 3840 × 2160 (4K)
Processing Speed
| Model | Input → Output | Speed (fps) | Total Time |
| Topaz Nyx | 720p → 4K | 4.37 fps | 5 min 43 s |
| Topaz Artemis | 720p → 4K | 1.39 fps | 17 min 55 s |
| UniFab Denoise | 720p → 4K | 12 fps | 2 min 5 s ⚡ |
UniFab Denoise was ~2.7× faster than Nyx and ~8.6× faster than Artemis on the same source.
Denoising Quality Summary
| Model | Quality Verdict |
| UniFab Denoise AI | Excels at noise removal — eliminates noise while preserving texture and smoothness; the most realistic image of the three |
| Topaz Nyx | Effectively removes most noise but over-smooths slightly, causing some loss of detail and realism |
| Topaz Artemis | Underperforms — significant residual noise that hurts overall image quality |
Combined Ranking
- Speed: UniFab Denoise ≫ Topaz Nyx ≫ Topaz Artemis
- Quality: UniFab Denoise > Topaz Nyx > Topaz Artemis
For mainstream low-light denoising work, UniFab is faster AND produces a cleaner, more natural result. Topaz's edge appears in extreme-noise edge cases (dark scenes with very high-ISO smartphone footage) where Nyx XL can recover slightly more detail at the cost of dramatically longer render times.
For a deeper head-to-head, see this UniFab vs Topaz Video AI review on YouTube:
How to Denoise Video with UniFab
30-day free trial for full feature, without watermark!
Launch the UniFab software. Select the Denoise AI module. Click the Add option to import the grainy and noisy video clip you wish to denoise.
Choose output resolution, model, and other parameters as you like. Alternatively, you can proceed with the denoising process with the default settings.
Once you are satisfied, tap Start to remove the digital noise from your source video. UniFab will complete the entire process in a few seconds.
Topaz vs UniFab Denoise — 5-Year TCO
After the October 2025 subscription switch, the long-term cost gap matters more than the year-1 sticker price.
| Years | UniFab Denoise AI (standalone) | UniFab All-In-One | Topaz Video AI | UniFab Denoise vs Topaz |
| 1 | $139.99 | $319.99 | $299 | save $159 |
| 2 | $139.99 cumulative | $319.99 cumulative | $598 | save $458 |
| 3 | $139.99 cumulative | $319.99 cumulative | $897 | save $757 |
| 5 | $139.99 cumulative | $319.99 cumulative | $1,495 | save $1,355 🔥 |
| 10 | $139.99 cumulative | $319.99 cumulative | $2,990 | save $2,850 🔥 |
For pure denoising, UniFab Denoise AI saves you $159 in year one alone vs Topaz, and the gap grows every year because Topaz keeps charging $299 annually. The All-In-One bundle is the better pick if you also need upscaling, HDR, or any of the other 20+ tools — by year 2 it's still cheaper than a single year of Topaz.
My Verdict — Which Tool Should You Pick?
Use Topaz Video AI Nyx if you do high-end professional restoration work, you've already got an RTX 30-series workstation, you specifically need Nyx XL's edge-case detail recovery, and you're comfortable paying $299/year forever.
Use UniFab Denoise AI if you process low-light footage regularly, batch through more than a few clips per week, want a no-watermark trial to evaluate before you commit, or work on a Mac (where UniFab's FabCloud closes the GPU gap Topaz can't).
FAQs about Topaz Denoise Video
What is the Topaz Nyx model?
The Nyx model is Topaz Video AI's dedicated AI denoiser, designed to clean heavy noise and grain in low-light or high-ISO footage while preserving fine detail. It's part of the Topaz Video AI suite — not a standalone product — and runs at 1× (preserve resolution) or paired with upscaling for full restoration. Available variants include Nyx, Nyx Fast, and Nyx XL depending on your Topaz Video AI build.
Is Topaz Denoise Video free?
No. Topaz Video AI requires a $299/year subscription as of October 2025 (the one-time perpetual license was retired). A free demo is available without a credit card, but every exported clip carries a watermark. For a free 30-day full-feature trial without watermarks, UniFab Denoise AI is the closest like-for-like alternative.
When should I use Nyx instead of Artemis in Topaz Video AI?
Use Nyx when your main problem is sensor noise or film-like grain in otherwise decent-quality footage (night shots, high-ISO, low-light). Use Artemis when the video suffers more from compression artifacts, blockiness, or low-bitrate streaming damage. Some workflows benefit from running Nyx first for noise, then a sharpening or detail model afterward.
Is Topaz video denoise good for old VHS or MiniDV footage?
Yes, with caveats. Nyx can reduce noise and grain in VHS, MiniDV, or analog captures, especially when combined with upscaling and dehalo controls. However, results depend heavily on tape condition — extremely damaged or warped tapes may still need manual restoration or specialized models like Topaz Starlight before Nyx can help.
What are the system requirements for Topaz Video AI denoise?
Windows 10/11 (64-bit) or macOS 12+ with Apple Silicon support. Topaz officially recommends an NVIDIA RTX 30-series or newer GPU with at least 8 GB VRAM, 16 GB RAM (32 GB recommended), and a CPU with AVX2 support. Lower-tier GPUs run Nyx but slowly; Apple Silicon M2/M3/M4 chips work well for short clips but lag NVIDIA RTX on heavy 4K + Nyx XL workloads.
Does Topaz Video AI work on Mac (Apple Silicon)?
Yes. Topaz Video AI is compatible with macOS 12+ and optimized for M1/M2/M3/M4 chips. Nyx specifically uses Apple Metal acceleration on Mac. That said, Apple Silicon performance still trails high-end NVIDIA RTX cards on long-form 4K denoising. For Mac-only workflows that need to denoise long clips at 4K, UniFab's FabCloud cloud processing offers a faster path.
Is Topaz Video AI Nyx safe to use?
Yes. Topaz Video AI is a legitimate desktop application from Topaz Labs with no malware or telemetry-based data harvesting beyond standard product analytics. Always download from the official Topaz Labs site — third-party "cracked" copies often carry trojans and can't receive model updates anyway, defeating the point of using Nyx.
How does UniFab Denoise AI compare to the Topaz Nyx model?
UniFab Denoise AI is ~2.7× faster than Nyx on a 720p → 4K denoise (12 fps vs 4.37 fps on RTX 4070) and produces a slightly cleaner, more natural-looking image in side-by-side tests. Topaz Nyx XL still wins on extreme-noise edge cases where maximum detail recovery matters. Pricing: UniFab Denoise AI is $139.99 lifetime vs Topaz's $299/year subscription.
Who should buy Topaz Video AI Nyx in 2026?
Professional video restorers and post-production pros who: process noisy archival material weekly, need Nyx XL's edge-case detail recovery, already own RTX 30/40-series workstations, and are comfortable with a $299/year subscription. Hobbyists, YouTubers, wedding shooters, and casual editors will get better total value from UniFab Denoise AI's lifetime license.
How can I denoise video without subscribing to Topaz?
Three reliable paths. (1) UniFab Denoise AI — free 30-day trial with no watermark; $139.99 lifetime after. (2) DaVinci Resolve Studio — paid one-time license; the Spatial / Temporal Noise Reduction tools are excellent for moderate noise. (3) Free open-source tools like Hybrid + NeatVideo trial — steeper learning curve.
What is the best video denoising software?
UniFab Denoise AI is the best video denoiser for Windows and Mac users. Its AI-powered denoising capabilities include noise removal and grain reduction while preserving the original quality of the video footage. Regardless of how the original video was shot, UniFab can denoise and enhance the video in just one click.