RenderHarbor vs GridBulk

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

RenderHarbor compared with GridBulk
Detail	RenderHarbor	GridBulk
What it does	Your imagination, rendered in seconds.	AI batch image generation with grid splitting: one prompt, up to 16 images, one credit
Stage	Not given	Startup
Founded	Not given	2026
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free plan: GPT Image 2 at 2K resolution. Pro adds other models and 4K output. Commercial license included with Pro plan.	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	Photo-to-photo editing (image-to-image)	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	All-in-one studio avoiding the need to hop between separate tools Runs entirely in the browser with no software installation required Try the generator for free without creating an account Dedicated pages for each tool with its own steps, FAQs and examples Some utilities run completely in browser without uploading files	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 plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	5 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	5	0
Citation Flow (Majestic)	24	0
Referring domains (Majestic)	18	0

5 details filled in for both companies.

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