Download · Windows

Download Alelyon for Windows.

The new Alelyon app is on its way. Until it lands, code with AI in your browser: no install, no account.

The earlier preview build is no longer offered. When the new build is published, this page lists its size, its SHA-256 digest and whether it is code-signed. This page asks for no details.

System requirements

Windows
Windows 11, 64-bitWindows 10 is not tested yet.
Graphics
AnyWithout a GPU the sign-in scene is a still picture; the rest is the same.
Local models
OptionalA GPU with enough memory for the model, or a patient CPU.
Agent browser
Edge or ChromeOnly if you turn it on. Edge ships with Windows.
Internet
Only what you chooseSign-in, friends, hosted models and research searches.
Account
Optional“Use offline” skips it.
Get access

One build. An account if you want one.

There is a single Windows build, and downloading it asks for no account. An account on this website is optional: below is what you have without one, and what one adds.

Without an account, and with one.

  • Without an account

    The app and the open toolkit

    Without an account, everything in the app runs locally, on the same build everyone gets. Separately, the public alelyon-os toolkit needs no account either.

    UI downloads are not published yet.

    The installer and portable controls stay unavailable until both reviewed artifact URLs are configured. There is no email request or substitute download path.

    Installer unavailablePortable unavailable

    Packaged previews enter through local account sign-in. That local account lives on the user's machine; it is not remote identity or a hosted-service entitlement.

  • With an account

    Your Alelyon account

    One Alelyon account works in the app, in Friends and here. On the account page you change your display name, claim a username, run your page and sign out.

    Hosted model chat comes only with a paid plan.

Open toolkit

Replay the evidence you actually have.

alelyon-os is published separately from the Terminal and the planned hosted service. Its verifier can replay supported receipts against supplied inputs and policy. An authenticated result still needs a public key obtained out of band: the receipt can detect revision of committed inputs, but it does not prove that a producer did not invent bad inputs at capture.

pip install alelyon-os

Installs the alelyon-verify command. Run alelyon-verify selftest to exercise the bundled conformance fixtures without a network connection.

Get access

The app, an account, a person.

One Windows build for everyone, an account on this website if you want one, and a person to ask.

The app

Run Alelyon on your own computer.

There is one Windows build, the same for everyone. Without an account, everything in it runs locally.

  • Local-first Windows interface
  • Open Alelyon toolkit and source, with no account
The build is not being served yetOpen source toolkit
An account

Create an account, or log in.

One Alelyon account works in the app, in Friends and on this website. Make one or sign in on the account page. Signed in, you get:

  • A profile with your display name and username
  • Friends and messages, in the app and on the web
  • Your page, and the choice whether your public posts may train AI

Hosted model chat comes only with a paid plan.

A person

Ask, and a person reads it.

It opens a pre-addressed message in your own mail client — nothing is collected by this website.

Nothing about access waits on a person. This address is for questions, problems, deletion requests, and anything a page cannot answer. It is read by a person, so no response time is promised.

Do not include credentials, account numbers, API keys, or position data in the message.