Cube vs exe.dev
exe.dev is excellent at many small VMs, fast. Cube is built around one computer for your agents, with an app on your Mac, in the browser and on your phone.
Updated
The short version
exe.dev gives you many small, persistent VMs that start in under a second, sharing one pool of CPU, memory and disk on your plan, plus its own Shelley agent. It’s great for spinning up a fresh machine per idea.
Cube gives your agents one Linux computer in the cloud and an app for your Mac and the web to run it: repos synced from GitHub, a Git worktree per task, every session in one place, and phone check-ins.
Side by side
| exe.dev | Cube | |
|---|---|---|
| Shape | Up to 50 VMs sharing one pool | One computer for your agents |
| Resources | Personal: 2 vCPU, 4 GiB RAM, 100 GiB disk, pooled | 2 to 32 shared vCPUs, 2 GB of guaranteed RAM and 15 GB of NVMe SSD per vCPU |
| Parallel work | A VM per idea | A worktree per task on one machine |
| Price | $15/month Personal or $75/month Work, plus metered overages | Per second while running; $12/month for 2 vCPUs running 24/7, $4 paused |
| Interface | SSH, web, Shelley agent | Mac app, any browser, phone, and SSH |
| Agents | Shelley, plus what you install | 22 agents, including Claude Code, Codex and OpenCode, install in one click |
When to choose exe.dev
- You want many throwaway-but-persistent VMs, fast.
- You like its built-in agent and integrations.
When to choose Cube
- You’d rather size one machine for your agents than split a small pool across many VMs.
- You’d rather manage worktrees on one machine than many machines.
- You want an app that shows every repo, worktree and session in one place.
Questions
Do exe.dev VMs get their own CPU?
No. As of October 2026, the Personal plan pools 2 vCPU and 4 GiB of RAM across all your VMs (up to 50), so busy VMs share the same resources. You can pay to grow the pool, up to 16 vCPU.
What does exe.dev cost?
Personal is $15 a month, with 100 GiB of storage and 200 GiB of bandwidth; Work is $75 a month, for up to 1,000 VMs per pool. Extra compute, disk and bandwidth are metered. The plans don’t include credit for its Shelley agent: you buy credits or bring your own API keys.
When should I choose exe.dev?
When you want lots of lightweight VMs that start in under a second, or you like working through its Shelley agent and integrations.