Topaz Anime Upscaling Review (2026): Gaia Model vs UniFab Kairo Tested

What Is Topaz Video AI Anime Upscaling?

Topaz Video AI anime upscaling refers to using the Gaia model inside Topaz Video AI to upscale animation, cel art, and CGI footage to 4K or 8K. Unlike the Proteus or Rhea models trained on live-action footage, Gaia is tuned to recognize and preserve anime-specific characteristics: clean line edges, flat color regions, motion lines, and stylized shadows.

Anime upscaler tools face a different problem from live-action upscalers. Real footage has continuous gradients and natural noise; anime has sharp lines, large flat-color areas, and zero noise on cel-quality sources. A live-action model applied to anime produces soft lines and washed colors. A dedicated anime model — Gaia in Topaz, Kairo in UniFab — keeps lines crisp.

Topaz Gaia Model Explained

Gaia is Topaz Video AI's anime / animation / CGI upscaling model. It targets: 

• 2D animation (anime, cel-style series)
• CGI sources with clean rendered output
• Line-art-heavy content (manga adaptations, motion comics)

Gaia characteristics observed in testing: 

• Clean line edges with minimal aliasing
• Stable color consistency across frames
• Moderate softening on fast-motion edges
• Occasional shadow flattening on dark scenes

Gaia is one of the original Topaz upscaling models and remains the official recommendation for anime sources inside Topaz Video AI.

Best Topaz Settings for Anime

The best topaz settings for anime depend on your source quality. Here's a baseline that works for most sub-1080p anime sources scaling to 4K on RTX 4070:

Anti-pattern: people often crank Sharpen and Recover Detail when upscaling anime, hoping to "find more detail." Anime doesn't have hidden detail. Aggressive sharpening creates halos around lines and ringing on motion edges. Less is more.

Topaz Anime Upscaling Performance Tests [Gaia Model]

To move beyond marketing claims and evaluate how Topaz Gaia performs in practical workflows, we tested it on a real-world anime clip under controlled conditions.

Test System:

• GPU: NVIDIA GeForce RTX 4070
• CPU: AMD Ryzen 7 5700G with Radeon Graphics

Test Footage:

A 1 minute 59 second anime source video at 30fps and 720×720 resolution, with slightly blurry details such as character outlines and clothing folds, and minor edge aliasing.

Processing Target: 

Upscale the anime footage to 3840×2160 (4K) resolution.

Topaz Anime Upscale Effect Analysis

When processing the 720×720 anime source to 4K on our RTX 4070 rig, Topaz Gaia delivered a mixed performance that aligns with our earlier observations.

• Artifact Smoothing: The model effectively reduced compression blockiness and minor edge aliasing, resulting in a cleaner, more polished base for the upscaled output.
• Line Sharpness Trade-off: While compression artifacts were smoothed, the overall image retained a slight softness. Thin black character outlines and clothing details, such as the folds on the characters' pants, were not fully reconstructed to the razor-sharp definition that anime fans often prefer. In some areas, these lines appeared to blur slightly into the background, rather than standing out crisply.
• Style Preservation: Gaia maintained the original color palette and cartoon art style without introducing unnatural "plastic" textures or color distortion. The character proportions and facial features remained stable, avoiding the warping that can occur with less specialized models.

In summary, Topaz Gaia excels at noise and artifact reduction, creating a visually cleaner image. However, for this 720×720 to 4K workflow, it does so at the expense of the crisp line work that is a hallmark of quality anime upscaling, making it a strong choice for artifact removal but less ideal for hyper-detailed reconstruction.

Real-World User Perspectives on Topaz Gaia

While Topaz markets the Gaia model as a solution for anime upscaling, real-world user feedback from the official Topaz Labs community paints a more critical picture. One user, identified as sinan.saymaz and labeled as a "TOPAZ VIDEO AI OWNER," stated bluntly:
"The Gaia model doesn’t improve quality at all. In fact, it tends to make it worse. Here is the proof of it:"
— sinan.saymaz, Topaz Labs Community Forum

This sentiment aligns with our own observations: when processing 720×720 anime footage to 4K, Gaia excels at smoothing compression artifacts but often sacrifices the crisp line work that anime fans prioritize, resulting in an overall softer, less detailed output that can feel like a step backward rather than an improvement.

How to Upscale Anime in Topaz Video AI (Step-by-Step)

If you're wondering how to use Topaz Video AI, here’s the shortest path to a completed upscale.

1. Open Topaz Video AI and import your anime source.
2. Select Gaia from the model picker. Stick with Gaia for anime; Proteus/Rhea/Iris are tuned for live-action.
3. Set output resolution — 4K is the sweet spot. Going to 8K from 720p sources rarely helps because the original master doesn't have that much detail to expand.
4. Match the source frame rate. Don't interpolate cel-animated content; you'll lose the intentional "on twos" timing animators chose.
5. Keep Sharpen at 0 and Recover Detail low (0–10). Anime line art needs no sharpening.
6. Configure export — HEVC codec, ≥ 30 Mbps for 4K anime, MP4 or MKV container.
7. Run a 5-second preview before committing to a full render. Watch for halos around lines and ringing on motion edges.
8. Click Export and verify on a TV/monitor at native 4K resolution.

Pros & Cons of Topaz Anime Upscaling

Pros

• Anime-specific training — handles cel art, line work, and flat colors better than generic upscalers
• Clean line edges with minimal aliasing
• Stable color consistency across frames
• Stackable with other models — can pair with Iris for face enhancement on anime
• Established baseline — most anime upscale tutorials reference Gaia

Cons

• Slow on consumer GPUs — 9+ min for 30s of 720p → 4K on RTX 4070
• $299/year subscription since October 2025
• Watermarked trial — can't ship trial output
• Slight softening on fast-motion edges and shadow flattening on dark scenes
• Outperformed by UniFab Kairo in side-by-side speed and detail tests

Topaz Pricing & Trial

In October 2025 Topaz Labs retired the perpetual license.

Free Trial — Topaz offers a free demo without a credit card, but every export is watermarked.

Best Alternative: UniFab Video Upscaler AI - Kairo Model

UniFab Kairo is the best alternative to Topaz Gaia for anime upscaling. It's part of the UniFab Video Upscaler AI module.

While Topaz has long been a leading name in AI upscaling, UniFab Video Upscaler AI's Kairo Model has quickly gained attention among video professionals and hobbyists alike. UniFab positions its Kairo Model not just for restoration, but for real-time enhancement of animation with a user-friendly interface. The Kairo Model, in particular, is engineered to preserve both linework and color saturation, often addressing the very shortcomings we noted with Gaia.

Topaz Gaia vs UniFab Kairo: Performance Test

Our empirical tests using identical clips revealed marked differences when upscaling anime to 4K. UniFab Kairo produced sharper line work, richer color saturation, and finer layer separation than Topaz Gaia, while finishing in roughly half the time.

Topaz Gaia vs UniFab Kairo: Processing Speed Test

Performance doesn't just end with image quality—processing speed is a key deciding factor for many users. Our benchmarks document a clear pattern: UniFab's Kairo Model almost always finished first.

Testing three representative samples:

💡 In two out of three typical real-world cases, UniFab doubled Gaia’s speed—an especially valuable distinction for anyone batch processing or working under tight deadlines.

Pricing Comparison

When it comes to investing in an AI upscaling solution for anime, price and licensing flexibility weigh heavily.

In summary: For dedicated anime enhancement, UniFab’s flexible licensing and lifetime options provide a much lower barrier to entry and long-term ownership.

5-Year TCO Comparison

UniFab pays for itself by month 13.

My Verdict: Choose Topaz Anime or UniFab Anime Model?

Which is the best anime upscaler? After dozens of test runs, it’s clear: if your goal is purely anime upscaling, UniFab's Kairo Model delivers better detail, faster processing, and dramatically lower long-term costs compared to Topaz Gaia. Its ease of use lowers the entry barrier for both beginners and long-time fans.

You can also check out this video about UniFab vs Topaz anime upscaling.

FAQs about Topaz Anime Upscaling

What is the best Topaz model for anime?

Gaia is the best Topaz Video AI model for anime, animation, and CGI sources. It's specifically trained on cel-art, line work, and flat color regions, producing cleaner edges and better color stability than the live-action-focused Proteus, Rhea, or Iris models. For anime upscaling outside Topaz, UniFab Kairo (the Animation Model) is faster and arguably sharper.

Is Topaz Video AI good for anime?

Yes, Topaz video ai anime upscaling via Gaia produces solid 4K output from 720p/1080p anime sources. Line edges stay clean, colors stay stable. The trade-offs are slow render times (~6 fps on RTX 4070), occasional motion-edge softening, and the $299/year subscription. For pure anime workflows, UniFab Kairo finished the same clip in roughly half the time with sharper detail in our tests.

What are the best Topaz settings for anime?

The best topaz settings for anime are: Gaia model, 4K output, source-matched frame rate, Sharpen 0, Recover Detail 0–10, Reduce Noise 0–5, HEVC codec, 30+ Mbps bitrate. Avoid sharpening — anime line art is already sharp, and sharpening creates halos. Avoid frame interpolation on cel-animated content because it disrupts intentional "on twos" timing.

Topaz Gaia vs UniFab Kairo — which is better for anime?

UniFab Kairo is faster (~2×) and produces sharper line work in side-by-side tests on identical 720p → 4K anime sources. Gaia remains a competent baseline. The choice often comes down to ecosystem: if you already pay for Topaz Video AI for other models, Gaia is fine; if you're picking a new tool specifically for anime, Kairo is the better default.

Can Topaz upscale anime to 8K?

Yes, Gaia supports 8K output. Whether 8K is worth it for anime depends on your source. Cel-quality 1080p masters don't have enough hidden information to fill an 8K frame meaningfully — you'll get a sharper output but not a more detailed one. For most anime sources, 4K is the practical ceiling.

Does Topaz Video AI work on Mac for anime upscaling?

Yes. Topaz Video AI runs on macOS 12+ with Apple Silicon (M1/M2/M3/M4) optimization via Metal. Gaia at 1080p anime works fine on M-series chips; 4K and 8K runs slower than NVIDIA RTX cards. UniFab offers FabCloud cloud processing as a Mac fallback if you don't have a discrete GPU.

Is Topaz Gaia free?

No. Topaz Gaia is bundled inside Topaz Video AI, which requires a $299/year subscription as of October 2025. The free demo exports watermarked output. UniFab Kairo offers a 30-day trial with no watermarks, allowing direct anime quality evaluation before purchase.

How long does Topaz Gaia take to upscale anime?

On RTX 4070, Gaia processes anime at ~6.19 fps in 720 × 720 → 4K mode. A 30-second clip takes about 4–5 minutes; a full 23-minute episode would take 4–5 hours. UniFab Kairo runs at ~12.66 fps on the same source, halving render time.

What's the difference between Gaia and other Topaz upscaling models?

Gaia is trained on anime / animation / CGI; Proteus is trained on general live-action; Rhea on texture-heavy footage; Iris on faces; Starlight on extremely degraded sources. Using a non-Gaia model on anime softens lines and washes colors. Using Gaia on live-action under-recovers detail. Match the model to the content type.

Can I upscale anime to 60 fps with Topaz?

Technically yes, but you usually shouldn't. Cel-animated anime is intentionally drawn "on twos" or "on threes" (12–15 unique frames per second). Interpolating to 60 fps via Apollo/Chronos creates the "soap opera effect" that ruins the artistic intent. Most anime fans prefer source-matched frame rate. For computer-rendered CGI series, 60 fps interpolation can work; for traditional cel-animated anime, leave it alone.