Cube vs Cloudroom
Cloudroom gives every agent thread its own short-lived cloud sandbox and branch. Cube gives your agents one computer in the cloud that stays on and keeps your whole setup.
Published
The short version
Cloudroom is a desktop app for macOS and Linux that runs coding agents on your Mac or in the cloud. In the cloud, each thread gets its own Linux sandbox with a copy of your project and its own Git branch, and you can open a pull request from the thread. Claude Code, Codex, Pi, OpenCode, Hermes and others run there on your own subscriptions, and keep working after you close your laptop. A sandbox sleeps a few minutes after its agent goes idle and wakes on your next message. You can check on cloud threads from your phone; starting a new one needs your Mac for now. Its core is open source.
Cube is a persistent Linux computer in the cloud for all your agents. Your repos, tools, sign-ins and dev servers live on one machine that stays on, and you run it from the Mac app, any browser or your phone.
Side by side
| Cloudroom | Cube | |
|---|---|---|
| Unit | A sandbox per agent thread, on its own branch | One computer for all your agents, a worktree per task |
| When idle | Sleeps after 5 to 60 minutes, by plan; wakes on your next message | Runs until you pause it |
| What persists | Files, history and installed tools; logins are removed before sleep | Everything while it runs; files, tools and logins when paused |
| Specs | Not published | 2 to 16 CPUs, 4 to 128 GB RAM, up to 500 GB disk |
| Agents | Claude Code, Codex, Pi, OpenCode, Hermes, Devin and more | Claude Code, Codex and OpenCode preinstalled; 18 more in one click |
| Price | Free: 100 cloud agents and 25 compute hours a month; $50, $150 or $500 a month for more | By the minute while running; about $20.50/month for 2 CPUs and 8 GB running 24/7; $25 of free credit |
| Interface | Desktop app for macOS and Linux; phone web app | Mac app, any browser (Windows, Linux, ChromeOS), phone, and SSH |
| Local agents | Yes, free, on your Mac | No; everything runs on the cloud machine |
When to choose Cloudroom
- You want each task isolated in its own throwaway sandbox and branch, ending in a pull request.
- You want to run agents on your Mac too, and move a thread to the cloud when you step away.
- Your agent work is bursty, and the free plan’s 100 agents and 25 hours a month cover it.
- You’d like an open-source core you can self-host.
When to choose Cube
- You want one machine that keeps your logins, dev servers and long-running processes, not a sandbox that sleeps between turns.
- You run agents for hours or around the clock and want a predictable cost: about $20.50 a month for the default machine.
- You want to size the machine yourself, and SSH into it from any terminal or editor.
- You work from Windows, a Chromebook or any browser, not only a Mac or Linux desktop.
Questions
What does Cloudroom cost?
As of October 2026, the Free plan includes 100 cloud agents and 25 hours of cloud compute a month, with 60 days of storage; local agents are free. Pro is $50 a month for 1,000 cloud agents, Super $150 for 3,000 and Ultra $500 for 10,000. Agents use your own model subscriptions.
Do Cloudroom sandboxes stay on?
Not when idle. A cloud sandbox never sleeps while its agent works or has queued messages, then sleeps after 5 idle minutes on Free, 20 on Pro and 60 on Ultra. Files and history survive sleep, and your next message wakes it; logins are removed before it sleeps.
When should I choose Cloudroom?
When you think in threads: one task, one sandbox, one branch, ending in a pull request. Or when you want to move a thread between your Mac and the cloud, or self-host its open-source core.