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UpSynth vs Z-Image

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

UpSynth compared with Z-Image
DetailUpSynth logo UpSynth Z-Image
What it doesAI image enhancement with control Free AI image generator with accurate text rendering in 20+ languages
StageNot given Not given
FoundedNot given Not given
Based inAT Not given
Pricing modelFreemium Freemium
PricingNot given Free to try online with limited credits. One-time purchase plans: Starter Pack $9.99 (reduced to $6.99 with yearly billing, 500 credits valid 365 days); Creator Pack $29.99 (reduced to $16.99, 1,650 credits plus 10% bonus); Pro Pack $79.99 (reduced to $41.99, 4,800 credits). All plans include commer
Key features
  • Upscale with intelligent detail refinement and artifact removal
  • Restore selectively corrects distorted or misinterpreted image areas
  • Modify adjusts image content via text prompts with multiple variants
  • Concurrent workers for parallel upscaling
  • Credit-based system with standard and large upscales
  • Image retention up to 3x multiplier
  • Works in browser without installation
  • GDPR compliant with EU hosting
  • Sub-second generation time (0.5 seconds)
  • Dual-language support for English and Chinese prompts
  • Lightweight 6B parameters model
  • Multiple aspect ratio options
  • Negative prompts to remove unwanted elements
  • Seed control for iteration
  • History gallery with local auto-save
  • Privacy-focused (no training data use)
  • Image upscaling with Hires Fix
  • ComfyUI integration ready
What makes it different
  • Multiple result variants to choose from
  • No use of user images for AI model training
  • EU hosting with GDPR compliance
  • Flexible pricing with credits, subscriptions, or free trial
  • Only AI generator with accurate text rendering in 20+ languages
  • FLUX-level quality at 10x the speed
  • Free for commercial use under Apache 2.0 license
  • Runs on consumer GPUs with only 6B parameters
  • Generates images in under a second with Turbo model
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)30 −1 (down) since last check28 no change since last check
Trust Flow (Majestic)203
Citation Flow (Majestic)2424
Referring domains (Majestic)7457

4 details filled in for both companies.

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