> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nemu.cc/llms.txt
> Use this file to discover all available pages before exploring further.

# Computer

> A real machine attached to a chat, billed for the minutes it runs

The Computer is a sandboxed container the agent can actually work in. It writes
the code, installs what it needs, runs a build, and serves the result at a live
URL you can open. Nothing runs on your laptop and nothing is left behind on it.

It is attached to a chat. Ask for something in that chat and the agent uses the
machine to deliver it rather than handing you a file to run yourself.

## What it can do

Install packages, scaffold with a framework CLI, run builds and tests, read and
write files, and start a preview server that stays up at its own address.
`bun`, `node`, `npm`, `git`, `curl`, `openssl` and `python3` are available.

Previews are private by default. You choose whether a project stays private, is
visible to your workspace, is public, or sits behind a password.

## Sizes

Two to choose from. Everything else is handled for you.

| Size             | Rate           | Suited to                        |
| ---------------- | -------------- | -------------------------------- |
| Standard         | €0.02 a minute | Most projects                    |
| High performance | €0.06 a minute | Heavier builds, on Pro and above |

You are never asked to pick memory. If a command runs out of room, the agent
stops, tells you it needs more, names the new rate, and waits for you to say yes
before continuing. Declining leaves the project exactly where it was.

## What it costs

Only the minutes it runs. Starting a project costs nothing, stopping it stops
the meter, and an idle machine that has been stopped is not billed. The rate is
the size you chose, charged per minute, and it comes out of your monthly credit
balance rather than being invoiced separately.

See [Credits](/computer/credits) for the balance itself and everything else that
draws from it.

## Limits by plan

| Plan       | Projects  | Running at once | Session | High performance |
| ---------- | --------- | --------------- | ------- | ---------------- |
| Free       | none      | none            | none    | no               |
| Starter    | 3         | 1               | 30 min  | no               |
| Pro        | 10        | 2               | 30 min  | yes              |
| Max        | 25        | 4               | 60 min  | yes              |
| Enterprise | unlimited | 4               | 120 min | yes              |

A session is how long one run can last before the machine stops on its own.

The Computer is not part of the free plan.

## Getting started

Open a chat, ask for something that needs to run, and the agent creates the
project on its own. There is no setup step and nothing to install.

```text theme={null}
Build me a small dashboard that reads this CSV and charts the totals,
then put it online so I can send the link to someone.
```

Related: [Prompting](/prompting) for getting more out of the agent.