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Monarch 0.3 Preview · Windows 10 and 11What’s new

Your intelligence —on your own hardware.

An AI helper right on your computer: answers questions, does tasks, reminds you of things and writes code. It runs on your own hardware and, when you need it, calls strong cloud models through MAX.

Free, no account — and fully yours. Models run right on your computer.

Your download has started

While the file downloads, here’s what comes next.

  1. 1Open the installerMonarch-Setup in your Downloads folder. No administrator rights needed.
  2. 2If Windows warns youClick “More info” → “Run anyway”. You can check the SHA-256 first.
  3. 3Go through the first setupLanguage, theme and where Oscar thinks: on your computer, through MAX or both. A model can be added later too.
Try a request
Local
models and data stay on your device
On request
internet and cloud only with consent
Verified
results are checked separately

01New in 0.3 Preview

Same chat. More done.

Monarch 0.3 Preview is still the same chat with Oscar. Only now it carries tasks through to the end, reminds you of things and downloads everything it needs by itself.

  1. 01Tasks right in the chatBeta

    Ask “gather the reports into a folder” and Oscar does it step by step in the same chat. You see the current step, there is a Stop button, and at the end a summary: what was done, what you allowed and what was blocked.

  2. 02Reminders

    Say “remind me in 20 minutes to check the oven” — and a Windows notification arrives right on time. “Every day” and “every week” work too.

  3. 03Everything downloads itself

    Chat models, Coder and speech recognition download with one button in the settings — with resume and integrity checks. Nothing to hunt for by hand.

  4. 04MAX — the cloud in one tapBeta

    Connect a service in settings and switch MAX on right in the message box. If the cloud doesn’t answer, your computer’s model replies — and the chat says so. The safety net can be turned off.

  5. 05Coder, rebuiltBeta

    Conversations per project, live progress and a new interface. Before a write — line by line “before / after”, and next to it the real changes in Git.

  6. 06A new first setup

    Language, a light or dark theme and where Oscar thinks: on your computer, through MAX or both. The interface speaks four languages.

02What it does

One assistant — all the work at your computer.

Oscar holds the conversation, does tasks, writes code in your project, works with windows and remembers what matters.

  • Step-by-step tasks — right in the chat

    Oscar breaks work into clear steps and shows them in the ordinary chat: the current step, permissions and the result. You can stop it at any moment.

  • Works with your appsBeta

    Sees open windows, launches apps, clicks, types and scrolls. It checks the window before acting and the result after.

  • CoderBeta

    A separate mode for code: conversations per project, live progress and “before / after” ahead of every write.

  • Memory

    Remembers what matters and keeps ordinary chats apart from projects. Marks answers that used memory; Incognito never gets into it.

  • Your own models

    Add a model from a file or a link — Monarch shows which variant fits in memory. Works in the ordinary chat.

  • Skills and answer stylePreview

    Ready-made scenarios via “+” or “$”. Answer length, tone and layout take two clicks to set.

  • Telegram

    Pair your phone with a one-time code and message Oscar from Telegram. Messages go through Telegram’s servers.

03On your hardware

All the thinking happens here — inside your computer.

Monarch’s models run on your PC’s processor and memory. Chats, files and history live on your drive, not on someone else’s server.

  • Models ship separately

    The installer doesn’t carry gigabytes of weights. You pick a model on first launch — or skip it and install one later.

  • Internet only when needed

    On its own, Monarch goes online only to check for updates. Search and cloud services run only after you agree.

  • Honest about speed

    Response speed depends on the model and your hardware. The bigger the model, the smarter — and the slower — it is.

How much memory does your computer have?

  • Basic 2BFast · basic

    Fits · 8 GB

  • Basic 12BFast · smarterMonarch suggests

    Fits · 16 GB

  • Pro 27BBetaSlow · maximum

    Not enough memory · 30 GB

On first launch Monarch suggests a model that suits your computer. You can add more — including your own — later in settings.

04Monarch Safe

A vault even Oscar can’t enter.

Encrypted storage for files and private chats. A separate process with no network, its own PIN and its own keys.

AES-256-GCM
Every file version gets its own random 256-bit key.
PIN + device
The PIN is bound to a secret on this computer: a copy of the vault on another PC can’t check it.
3 keys
Three recovery keys in case you forget the PIN. Three wrong PINs destroy the keys.
No network
The Safe window is isolated: no network, no launching programs, clipboard closed by default.

05Monarch Security

A sentinel that stays when the window closes.

Security runs apart from the app: close Monarch and the watch goes on. It’s built on strict rule-based checks; a model only advises.

  • Scans never delete files or kill processes on their own
  • Online file reputation checks are off by default
  • The log keeps codes and hashes, not the contents of your files

Security is an early version (Beta), not an antivirus. It complements Windows Defender rather than replacing it.

Security

Still running

Events

  • Attempt to change a scheduled task
  • Network connection: known process
  • New file in Downloads checked
  • Startup items: no changes

How Security responds to Oscar’s actions

Stops an action when its risk score is 70% or higher.

70%
  • 12%Read the project foldercarried out
  • 58%Change startup programscarried out
  • 84%Run a downloaded filestopped

Scores are illustrative

06MAX · the cloud, when you want it

The cloud — only when you call it.

MAX turns on strong cloud models with one switch in the message box. Every service is connected separately, with its own consent.

12 services to choose from

Goes to the service

  • The request you sent in MAX mode
  • Documents you attached yourself

Stays with you

  • Keys to other services, and the Safe
  • Memory — until you allow it separately
  • Everything unrelated to the request

Tick all three — until then MAX sends not a single byte

  • Each service key is encrypted separately and never reaches child processes
  • No silent switching: if a service does not answer, the reply from your computer’s model is labelled in the chat — and you can turn that off
  • No automatic paid retries

07Download

Take Monarch home.

Free, no account — and fully yours. One installer for Windows; you choose where Oscar thinks on first launch.

System
Windows 10 or 11, 64-bit
Memory
8 GB minimum, 16 GB recommended
Rights
installs without administrator rights

What happens after the download

  1. 1
    Open the installer

    Monarch-Setup in your Downloads folder. No administrator rights needed.

  2. 2
    If Windows warns you

    Click “More info” → “Run anyway”. You can check the SHA-256 first.

  3. 3
    Go through the first setup

    Language, theme and where Oscar thinks: on your computer, through MAX or both. A model can be added later too.

The installer doesn’t have an Authenticode certificate yet, so Windows SmartScreen may warn you on launch. Check the SHA-256 — it matches the signed manifest.

If Microsoft Edge blocks the download, use another browser or the GitHub Release page.

All versions

Monarch

0.3.0.101

stable
Download Monarch691.4 MB
File
Monarch-Setup-0.3.0.101.exe
Size
691.4 MB
Released
October 20, 2026
Channel signature
Ed25519 · monarch-release-2026-01
SHA-256
b0d9b22cec2012fb451519c0a13e0c483606c86aed2d6ee6e1b3d5eef504cc0a
GitHub Release

The short version

Yes — the main work, from chat and code to tasks and models, happens on your computer. The internet is needed to check for updates, and for search and cloud services that only turn on with your consent.

Only what the access mode you chose allows. Sensitive actions need a separate confirmation, and dangerous ones — like deleting a drive root or touching the Safe — are forbidden outright.

The installer doesn’t have an Authenticode certificate yet, so it has no SmartScreen “reputation”. The update channel is signed with Ed25519, and you can verify the file itself by its SHA-256.

Monarch is free. The only thing you may pay for is a cloud service — and only if you connect it yourself in MAX. The service sets its own prices.

On your drive. Models, chats and files stay on your computer. Something leaves only if you turn on search or a cloud service yourself.

Yes. The plan and the current step are visible right in the chat, and you can stop a task at any moment — including window control in Computer Use.

If MAX doesn’t answer and work on your computer is allowed, your computer’s model replies — the chat labels it. The paid request is not repeated. You can turn this safety net off in the MAX settings.

Yes. In Settings → Models → “Your models”, add a model file or a Hugging Face link. Monarch shows which variant fits in memory. Your own models work in the ordinary chat.

No. Monarch downloads and works without signing up.

Chats, settings, models and the Safe are kept. The update is installed next to the old version and rolls back if the new one fails to start.