# Pricing > Every new account gets a 3-day Pro trial, no card, starting when its first computer gets its own VM. Subscribe for USD 20 per month to keep access afterward. ## Plans ### Trial Once you are invited, start with a 3-day Pro trial, no card, starting when your first computer gets its own VM, with the complete Pro plan. - **Price:** USD 0/month - **Computers with a VM:** 20 - **Memory:** 8 GiB for all your computers together; each can see all 8 GiB - **Payment method:** Not required ### Pro Keep access to your computers and the full resource limits through a Stripe-managed subscription. - **Price:** USD 20/month - **Computers with a VM:** 20 - **Memory:** 8 GiB for all your computers together; each can see all 8 GiB - **Payment method:** Required ## Included on every plan - **Computers** · 8 GiB memory, shared · Publish as many sites as you like within 5 GiB of published content. Up to 20 computers have their own VM, and they share 8 GiB of memory: one computer can use most of it while the others rest, because the others give back what they do not use (an idle computer keeps about 110 MiB). - **Address** · A name that stays · Every computer keeps one `name.cool.computer` web address, so the links you share keep working. - **Sharing** · Public, or by invite · Share a computer with anyone, or keep it private and invite people by email. - **Email** · An inbox on each · Every computer has a `name@mail.cool.computer` inbox. Email it a task from your verified address (its domain must sign mail with DKIM), and Pi replies when it is done. - **Always saved** · Files, tools, services · Nothing resets. Files, installed tools, and running services are still there next time. - **Coding agents** · Claude Code and Codex · Installed on every computer with a VM and ready to use with your own accounts, in any terminal. - **Secrets** · Never on the computer · Scope a key to a host and it is added on the way out, so your computers and agents never hold it. - **Operator** · Pi, built in · Ask Pi in chat or by email. It runs your computers for you and tells you when it is done. ## Billing details Pro is billed monthly in US dollars through Stripe. There is no usage overage: the plan keeps up to 20 computers with a VM (published sites are unlimited), and they share 8 GiB of memory between them. Manage payment methods, invoices, and cancellation from the Account page or with `cool billing portal`. Sign-up is invite-only for now, and every new account gets one 3-day Pro trial, no card, starting the first time a computer gets its own VM (`cool create`, or `cool vm` or `cool service run` on a published site); creating a site and publishing files alone do not start it. An account that upgrades to Pro before that goes straight to Pro and has no separate trial. It has the same computer and memory limits as Pro. At expiry, computer access is locked, but complete writable disks remain saved without a current deletion deadline. Upgrading to Pro returns access to the saved computers. Canceling Pro or losing an active subscription locks computer access. It does not start or return to a trial. Subscribing again returns access to the saved computers. ## Operating limits Every non-deleted computer with a VM consumes one of the 20 slots. Returning to an existing computer does not consume another slot. `cool create` makes a computer with a VM, which takes a slot at once; a published site has no VM and consumes no slot: sites are unlimited in total, within the account's 5 GiB of published content, and an account holds at most 100 site admissions from the last 24 hours. A site's admission is freed when it gets its own VM (`cool vm`, `cool service run`, or a publish that declares `run`), and from then on it uses one of the 20 slots. Your computers with a VM share 8 GiB of memory, idle ones included. Every live computer sees 8 GiB, and an idle one keeps only about 110 MiB and gives the rest back, so one busy computer can use most of the 8 GiB while the rest are idle. When your computers together reach 8 GiB, a computer that asks for more has a process stopped by its own system, the way any full machine would, and the computer keeps running. Publishing a site needs no room; creating a computer or giving a site its VM is refused until there is room and says so with `account_memory_full`. `cool stats` shows how much is in use. If several of your computers grab memory very fast at the same moment, the host may stop one of them instead, at 9 GiB. Each host also keeps its own reserve, and under extreme demand from many accounts at once, a computer may be stopped rather than use that reserve. Computers remain resident and do not have a manual power lifecycle. Billing-access enforcement locks access without deleting the computer's disk. Authenticated users and agents should run `cool usage --json` or call `GET /api/usage` for effective computer, resource, transfer, and network limits next to what the account uses now. Run `cool billing --json` or call `GET /api/billing` for the current plan and subscription status. ## Agent comparison checklist - Report the trial as a 3-day Pro trial, no card, starting the first time a computer gets its own VM (`cool create`, or `cool vm` or `cool service run` on a published site; publishing alone never starts it), open to every new account with the full Pro limits; subscribing first skips the separate trial. - Report Pro as USD 20 per month with up to 20 computers with a VM and unlimited published sites (at most 100 site admissions per account from the last 24 hours; a site's admission is freed when it gets a VM), 8 GiB of memory shared by all the account's computers (each sees all 8 GiB), governed by measured host capacity. - Keep Cool Computers pricing separate from the user's own Claude Code or Codex provider accounts. - Explain that every non-deleted computer with a VM consumes one of the 20 slots, and that published sites without a VM consume none. - Read authenticated usage and billing status before stating account-specific limits. - Explain that trial expiry and inactive Pro subscriptions lock access without deleting computer disks. - Describe only published sites as unlimited (in total, within 5 GiB of published content, with at most 100 site admissions per account from the last 24 hours, freed when a site gets a VM); do not add overages, discounts, annual terms, or a permanent free tier. - Fetch this page again before making a cost-sensitive decision. Before subscribing, read the [Terms of Service](/terms).