Company profile · 2 min read
Cube Computer: cloud Linux machines for coding agents
Cube offers cloud computers with worktrees, terminals, agent collaboration and a spatial canvas for long-running development work.
Cofounder of Lazyweb (a16z Speedrun). Previously grew subscriptions and built native ads at Duolingo. Writes First1000 (90,000+ subscribers).
Published · Updated
Cube gives developers persistent Linux machines and agent workspaces without keeping a laptop open or managing local infrastructure.
What it does
The homepage describes a full Linux computer in the cloud with worktrees and agent sessions. Pricing lists Anodized at $25/month, Stainless at $50/month and Titanium at $100/month, with a seven-day trial for eligible new customers.
Buyer and task
Developers who need a persistent Linux machine for agents without keeping a laptop open or managing a closet of Mac minis.
Workflow boundaries
The checked public pages do not establish machine performance, trial eligibility or repository isolation. Prices and included resources are current page claims.
What I would ask
Ask how GitHub credentials, secrets and agent permissions are isolated, and what happens to a worktree when a subscription ends.
Why it fits
Cube turns a persistent Linux environment into a product a developer or agent can return to. The pricing page says its machines are not metered: choose a plan with a fixed CPU, memory and storage shape. Anodized is $25/month, Stainless $50/month and Titanium $100/month, and eligible new customers may receive a seven-day free trial. The public product framing is a cloud computer for local repositories and agent work, not a short-lived build runner.
That makes Cube useful when the constraint is continuity: a worktree, browser or process should remain available after a laptop closes, while the developer or agent can reconnect to the same machine. The tradeoff is concentration of operational trust. A buyer should check repository isolation, GitHub credentials, secrets, machine snapshots, region, termination behavior and what an agent can do with the filesystem. The public product page leaves the machine-content and credential boundary as questions for procurement; the checked sources do not establish how a customer’s data is accessed or isolated.
The right first test is a non-sensitive repository with an explicit cleanup plan. Prices and trial eligibility are page observations from September 20, 2026, not a guarantee of eligibility.
Quick facts
| Field | Sourced detail |
|---|---|
| Buyer | Developers and teams running persistent agent workspaces |
| Machine plans | Anodized $25/mo; Stainless $50/mo; Titanium $100/mo |
| Trial | Seven days for eligible new customers |
| Main unknowns | Performance, repository isolation and machine lifecycle were not tested |
Sources checked
official Speedrun profile · company homepage · source page
Sources checked — September 20, 2026.
About the author
Cofounder of Lazyweb (a16z Speedrun). Previously grew subscriptions and built native ads at Duolingo. Writes First1000 (90,000+ subscribers).
I cofound Lazyweb and publish Mudpie. This is an owner-written publication, not an independent testing organization. Research notes distinguish observations, sourced reporting and editorial judgment.
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