Downloadsv1.0.0

Get LumiChats Desktop

Ask a question and it searches the web, reads the sources, runs Python on your machine and writes a real document — showing you every source it used and whether it actually read it.

Windows

Windows 10 and 11, 64-bit · Intel, AMD and ARM

Available
Download for Windows

LumiChats-Setup-1.0.0.exe · 167 MB

Windows will warn you. Here is why, and what to click.

You will see “Windows protected your PC” with the Run button hidden. Choose More info, then Run anyway.

This happens because the installer is not code-signed yet — a certificate has to be bought from a certificate authority and this one is not funded yet. The warning is about who vouched for the file, not about what the file does. You have no way to tell that from the dialog, which is exactly why it is written here instead of leaving you to guess.

Verify your download

A signed installer vouches for itself. An unsigned one cannot, so a published hash is the integrity check you have left. Run this in PowerShell and compare the result with SHA256SUMS.txt published with the release.

PowerShell
certutil -hashfile LumiChats-Setup-1.0.0.exe SHA256
macOS
Soon

Built, not published. Notarisation needs an Apple Developer account.

Linux
Soon

AppImage and .deb are in the build configuration and not published yet.

After installing

It updates itself

Installed copies check once a day and install a new version the next time you quit — never mid-task. You will not need to come back to this page.

Your work stays on your machine

Conversations, documents and the source ledger live in %USERPROFILE%\.lumichat. Uninstalling leaves them alone.

One account, both tools

Signing in here signs you into the Lumi CLI too.

Read the documentation

The full reference covers the Lumi tiers, permission modes, the security model and where everything is stored.

Requirements

Operating systemWindows 10 or 11, 64-bit
Disk spaceAbout 500 MB, plus whatever your documents come to
AccountA LumiChats account — free to create
InternetNeeded to search and to answer. Reading your own files is local.
PythonNeeded for Word, PowerPoint, PDF, spreadsheets and charts, which are built by running it. You do not have to install it yourself — the app checks, and offers to do it for you in one click. Everything else works without it.