Mainbrella vs OpenRP

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

Mainbrella compared with OpenRP
Detail	Mainbrella	OpenRP
What it does	Cloud computers for AI agents on Cloudflare	Collaborative platform to build immersive roleplay worlds with AI characters
Stage	Not given	Startup
Founded	Not given	Not given
Based in	US	Not given
Pricing model	Freemium	Freemium
Pricing	Prepaid compute at $0.02 per compute-unit hour. Minimum $5 top-up with no monthly subscription. Machine rates: Lite $0.02/hour, Small $0.12/hour, Medium $0.20/hour, Large $0.32/hour, XL $0.56/hour. Open source platform available via GPLv3 license for self-hosting on Cloudflare (Workers Paid plan sta	Free: $0/month with unlimited characters and messages using free AI models. Plus: $10/month including everything in Free, unlimited public and private worlds, $10 model credits monthly, more detailed personas, more slots, and priority support.
Key features	Linux workspace with command execution, file operations, and tool installation HTTP API, SSH, and browser terminal access Account-owned lifecycle controls and explicit ownership Five machine sizes from Lite to XL Saved workspaces with snapshot stop and resume Prepaid balance with no monthly subscription Shared accounts and billing infrastructure Hosted apps including Linux computers, Vibe coding, and Voice agents Custom runtime images and language support Outbound internet and ephemeral storage	World editor with visual interface for characters, backstory, and locations Characters know each other and develop memories Auto-vector embedding for content retrieval in chat Advanced prompt customization for system prompts and LLM parameters GitHub-like collaboration with world forking and change proposals
What makes it different	Open-source platform that can be self-hosted on own Cloudflare account Built-in accounts, billing, and metering so developers don't start from scratch Simple prepaid model with no monthly commitment Direct founder contact for product feedback and integration questions Account-owned HTTP workflow with automatic cleanup	Prevents AI hallucinations through interconnected world lore and character context Complete control over prompt engineering and AI behavior customization Private roleplay data not used for AI model training
Community votes	0	0
DR (Domain Rating by Ahrefs)	21 −1 (down) since last check	18 no change since last check
Trust Flow (Majestic)	5	0
Citation Flow (Majestic)	32	24
Referring domains (Majestic)	69	10

5 details filled in for both companies.

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