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UniFab vs Linum

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

UniFab compared with Linum
Detail UniFabLinum logo Linum
What it doesAI-powered online video enhancer for upscaling to 4K and restoring video quality Generative video models for animation
StageEstablished Not given
FoundedNot given Not given
Based inHK US
Pricing modelFreemium Not given
PricingFree credits for new accounts. Paid plans: 600 Credits starting at $16.67 ($0.0278/credit) or 1000 Credits starting at $25.00 ($0.0250/credit) with flexible monthly or yearly subscription, or pay-as-you-go one-time purchase. Not given
Key features
  • Upscale videos up to 4K with 1x, 2x, or 4x scaling options
  • Frame-by-frame AI analysis and detail reconstruction
  • Noise reduction and artifact removal
  • Real-time preview of enhanced results
  • No download or installation required
  • Works on Windows, Mac, Chromebook, iPad, and mobile devices
  • Supports MP4, AVI, MOV and more formats
  • HTTPS/TLS encryption and automatic deletion after 3 days
  • No watermarks on downloaded videos
  • Pyramid-JiT (P-JiT) architecture with 32×32 token reduction
  • 4× more aggressive token reduction than Linum v2
  • Converges in 11× fewer samples than Linum v2
  • 2B-parameter model with frozen Qwen text encoder
  • Pixel-space diffusion with multi-resolution readouts
  • PixelREPA alignment with DINOv3-L
  • Curriculum learning over noise schedule
What makes it different
  • Advanced AI reconstructs missing details rather than stretching pixels like simple upscaling
  • Cloud GPU processing eliminates need for powerful local hardware
  • Natural-looking enhancement without artificial or over-processed appearance
  • Never uses videos to train AI models and videos are deleted within 3 days
  • Free credits for new accounts with no credit card required
  • Low-cost training: full 2B model trained for just $21K in compute
  • Controls baked into model training rather than post-hoc fine-tuning
  • Pixel-space compression without separate VAE bottleneck
  • Apache 2.0 open release with full model weights and code
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)56 −1 (down) since last check44 +1 (up) since last check
Trust Flow (Majestic)265
Citation Flow (Majestic)4832
Referring domains (Majestic)1254397

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