AI agent? Read uno.place/llms.txt — connect to the person's account without a password.

VPS vs serverless vs PaaS

A VPS is a whole server you rent and run yourself. A PaaS runs your app for you: you hand over code or a container. Serverless runs a function only while a request is being handled, and bills for that time. Take a VPS for programs that stay up, a PaaS to ship fast without ops, serverless for short, spiky jobs.

Take a VPS
for a bot, an API, a database or an agent that must stay reachable for months.
Take a PaaS
to deploy a web app from git and leave the servers to someone else.
Take serverless
for code that runs for seconds, in bursts, with long quiet spells.
Take an Uno computer
for a VPS that an agent sets up and that sleeps when idle.

Side by side

VPSPaaSServerlessUno computer
You rentA virtual serverA place that runs your appA function, per callA microVM with root
You manageThe system, updates, security, the appThe app and its settingsThe functionThe app; an agent can do the system work
Billed byThe month or the hourResources, by the second or monthRequests and run timeA flat monthly plan
Longest runNo limitNo limit while the instance runsAWS Lambda: 15 minutes per callthere is no session time limit; it sleeps when idle and wakes with its memory
State between requestsDisk and memoryDisk on a volume; memory restarts with the appNone: built for short tasks that keep no state between callsDisk and memory
When nobody visitsRuns and billsRuns; some free tiers spin down after 15 minutesNothing runs, nothing is billedAsleep after 10 minutes, memory kept
Cost, 1 GB class$6 (DigitalOcean)$6.70 (Fly) to about $30 (Railway)Free for light use; $43.20 if it ran all month$5
Prices per month, checked 16 October 2026 on the providers' pages. The Lambda figure is our arithmetic: 30 days of 1 GB at $0.0000166667 per GB-second.

A month of one 1 GB service that never stops

In $ per month. Serverless bills run time, so the last bar is the wrong use of it: a function that is idle most of the month costs almost nothing.

Uno Small
$5
VPS: DigitalOcean
$6
PaaS: Fly shared
$6.70
PaaS: Railway
$30
Serverless: AWS Lambda
$43.20
0204060
Show as a table
Option$ per monthShape
Uno Small51 vCPU · 1 GB · sleeps when idle, keeps memory
VPS: DigitalOcean61 vCPU · 1 GB
PaaS: Fly shared6.70shared-cpu-1x · 1 GB, cheapest regions
PaaS: Railway301 vCPU · 1 GB used all month, billed by the second
Serverless: AWS Lambda43.201 GB running all month

What each one looks like

With a VPS you log in and run commands. With a PaaS you push code and the platform builds and starts it. With serverless you write one function, and the provider calls it. Lambda allows 15 minutes per call, and 1,769 MB of memory gives one vCPU.

# VPS: you run the server
$ ssh [email protected]
$ apt install nginx
$ systemctl enable --now myapp

# PaaS (Fly.io): the platform runs it
$ fly deploy

# Serverless (AWS Lambda, Python): one function
def lambda_handler(event, context):
    return {"statusCode": 200, "body": "ok"}

Serverless is cheap when quiet. Lambda gives 1 million requests and 400,000 GB-seconds a month free, then charges $0.20 per million requests. A 512 MB function that runs 200 ms a million times uses 100,000 GB-seconds, inside the free tier. A PaaS bills each piece: on Fly, a Machine, a volume and an IPv4 address are separate lines, and managed Postgres starts at $38 a month.

Who manages what

Four layers, from hardware to your code, and who looks after each in a VPS, a PaaS, serverless and an Uno computer. You own your code in all four. On a VPS you also own the system and the runtime. VPSPaaSServerlessUno computer Hardware, network Provider Platform Provider Uno System, updates You Platform Provider Agent or you Runtime, scaling You Platform Provider Agent or you Your code You You You You
Violet is your job, grey is the provider's. On Uno the system work can go to the agent.

When nobody is there

Most apps spend most hours idle. How each model treats those hours decides the bill and the speed of the next visitor. A VPS keeps running. A serverless function does not exist between calls, so each new copy starts cold. An Uno computer sleeps after 10 minutes, and memory and running programs are saved while it sleeps.

One day on four setups. A VPS runs all day. A PaaS app runs, and a free tier can spin down. A serverless function runs only for each call. An Uno computer works in blocks and sleeps with memory kept between them. VPS Running and billed all day PaaS, free tier Running Spun down Starts again Spun down Serverless Nothing exists between calls Uno computer Asleep Works Asleep · memory kept Works Asleep · first request wakes it One day. Green is time spent on a request or a job.
The PaaS row follows the rule on Render's free tier: it spins down after 15 minutes without traffic and takes about one minute to start again. Other plans differ. The blocks are an illustration, not a measurement.

Where Uno sits

An Uno computer is a VPS-class machine: a Firecracker microVM with root, one per computer. It has there is no session time limit; it sleeps when idle and wakes with its memory. It borrows the good parts of the other two. Like a PaaS, it can be set up for you, by an agent that installs and starts your app while you watch. Like serverless, it stops costing attention when nobody visits, but it keeps its state, so the next request finds everything where it was.

What an Uno computer adds to a plain VPS

Same root, same Linux. Here is what comes on top.

It sleeps when idle and keeps its memory

With nothing to do for 10 minutes it falls asleep with every program still in memory. A visitor, a bot message or you wake it. Every hour asleep earns you a boost.

An AI agent sets it up for you

Tell Uno what you need in a chat. It installs, configures and starts it on your computer, and you watch every command it runs. Or bring Claude Code or Codex with your own subscription.

Fast where it counts

NVMe disks and DDR5 with error correction (ECC). On 16 vCPU an Uno computer scores like a MacBook Air M4 in Geekbench 6: a second MacBook in the cloud for $70 a month.

A clean address of your own

Traffic can leave through a static address of a regular internet provider in one of 8 countries, used only by your account. Fewer captchas for your agent's browser.

Nothing happens unseen

Every time Uno itself touches your computer, it goes to your access log: who, when and why.

Where Uno is worse

  • Serverless scales out to thousands of copies on its own. One Uno computer is one machine, up to 32 vCPU and 48 GB.
  • A serverless bill falls to near zero when nobody calls. An Uno plan is flat, from $5 a month.
  • A PaaS ships deploy pipelines, rollbacks and scaling as a product. On Uno you get a computer, and your agent builds those parts.
  • A plain VPS sells memory for $1.25–1.62 per GB a month. Uno charges $4.2–5.
  • Our vCPU are shared, and paid computers run in the Netherlands today.

An Uno computer, from $5 a month

Pick the size. It sleeps when idle and wakes on the first request. Move up any time.

Small

A Telegram bot, a VPN, a small backend

$5/ month

  • 1 vCPU · 1 GB
  • 15 GB disk
  • 25 GB cloud storage
  • 5 boosts a month
Get Small

Plus

Agents that work with your laptop closed

$20/ month

  • 4 vCPU · 4 GB
  • 40 GB disk
  • 100 GB cloud storage
  • Uno Work in the cloud
Get Plus

Pro

A product in production, a second MacBook

$70/ month

  • 16 vCPU · 16 GB
  • 120 GB disk
  • 300 GB cloud storage
  • Speed of a MacBook Air M4
Get Pro

Max

A team and many agents at once

$200/ month

  • 32 vCPU · 48 GB
  • 300 GB disk
  • 1,024 GB cloud storage
  • 5 public IPv4
Get Max

Add Uno AI to any plan: 40 h of AI work a month on Small, 100 h on Plus, unlimited on Max. Today: GLM-5.3 Flash and MiMo v2.6 Pro. Or sign in with your own Claude or ChatGPT.

Next

  1. What is a VPSA slice of a server that behaves like your own computer.
  2. VPS, VM, container, sandbox: what's the differenceFour ways to rent a place for code, and which one fits your job.
  3. How to choose a server for your projectMemory first, then disk, CPU and region. A table of starting sizes.

A VPS-class computer that sleeps when idle

Root and a memory that survives sleep. Small is $5 a month.

Get your computer