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UpSynth vs GridBulk

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 GridBulk
DetailUpSynth logo UpSynthGridBulk logo GridBulk
What it doesAI image enhancement with control AI batch image generation with grid splitting: one prompt, up to 16 images, one credit
StageNot given Startup
FoundedNot given 2026
Based inAT Not given
Pricing modelFreemium Freemium
PricingNot given Free plan includes 20 credits on signup with the first generation free. Basic: $19/month for 2,000 credits/month (≈32,000 images with 4×4 grid). Pro: $49/month for 5,000 credits/month (≈80,000 images with 4×4 grid). Max: $99/month for 10,000 credits/month (≈160,000 images with 4×4 grid).
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
  • Generate up to 16 images in a single 4×4 grid
  • Grid splitting into individual pixel-perfect assets
  • REST API with sync and async endpoints
  • MCP server for AI agent integration
  • Reference image support for style guidance
  • Runs on Google Gemini and OpenAI GPT Image models
  • Dashboard history with searchable generations
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
  • One credit per grid instead of per image, reducing cost per image to 1/16 for 4×4 grids
  • Contact-sheet view for side-by-side comparison of all results
  • API and MCP server built for AI agents as first-class users
  • Independent and self-funded operation
  • First generation completely free with 20 signup credits
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)31 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)200
Citation Flow (Majestic)240
Referring domains (Majestic)740

4 details filled in for both companies.

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