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Mainbrella vs Subquadratic

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 Subquadratic
Detail MainbrellaSubquadratic logo Subquadratic
What it doesCloud computers for AI agents on Cloudflare Efficiency is Intelligence
StageNot given Startup
FoundedNot given Not given
Based inUS US
Pricing modelFreemium Paid
PricingPrepaid 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 100M tokens for new users. $0.04 per 1M tokens for input tokens.
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
  • 384K token context window
  • Multimodal input support
  • 100K tokens processed in less than a second
  • Structured output for direct code use
  • Subquadratic Sparse Attention algorithm for efficient compute
  • $0.04 per 1M tokens pricing
  • Customer content not used for model training
  • Data retention limited to 60 days
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
  • First long-context decision model purpose-built for enterprise work
  • Frontier-level decision-making performance at 5-10x lower cost than frontier LLMs
  • Tied for #1 on Artificial Analysis Decision Index
  • Processes entire codebase or data room in single context window
  • Speeds agent reasoning from minutes to seconds
Community votes00
DR (Domain Rating by Ahrefs)22 +1 (up) since last check52 no change since last check
Trust Flow (Majestic)517
Citation Flow (Majestic)3237
Referring domains (Majestic)69654

6 details filled in for both companies.

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