An open-source AI assistant with persistent memory
Publisher’s description
What is Kai?
Kai is an open-source chat & messaging program for Windows from Simon Schubert.
Installation and requirements
Official installers exist for 64-bit as MSI. Installation asks for administrator rights. The installer supports unattended (silent) installation. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 3.3.0, released on October 2, 2026. 41 versions are listed since March 10, 2026, each with links to its own installer files. The last update is less than a month old.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- MSI package for managed deployment
- Documented silent install
- Updated in the last two months
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: Kai is an open-source chat & messaging tool for 64-bit PCs. Administrators can deploy it unattended.
Is Kai safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
9B751727F08E2A407C208EF305EBA69160F26849A71E12E405AF16C1203ADF05· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 41 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 3.3.0Latest | October 2, 2026 | — | 64-bit MSI |
| 3.2.0 | September 7, 2026 | — | 64-bit MSI |
| 3.1.0 | August 30, 2026 | — | 64-bit MSI |
| 3.0.0 | August 2, 2026 | — | 64-bit MSI |
| 2.9.0 | July 25, 2026 | — | 64-bit MSI |
| 2.8.3 | July 21, 2026 | — | 64-bit MSI |
| 2.8.2 | July 18, 2026 | — | 64-bit MSI |
| 2.8.1 | July 11, 2026 | — | 64-bit MSI |
Install from the command line
Silent install ›winget install --id SimonSchubert.Kai -emsiexec /i Kai-3.3.0-windows.msi /qn /norestartmsiexec /x {7F87C168-9125-3B1D-9E7A-55FCB5E082B7} /qn /norestartRelated guide: How to use winget: install and update apps
Information
- Publisher
- Simon Schubert
- Category
- Chat & messaging
- Licence
- Apache-2.0
- Price
- Free
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Version
- 3.3.0
- Released
- October 2, 2026
- Added to the catalogue
- March 10, 2026
- Versions listed
- 41
- Website
- github.com
- winget ID
- SimonSchubert.Kai
- MSI product code
- {7F87C168-9125-3B1D-9E7A-55FCB5E082B7}
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to Kai
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Frequently asked questions
Is Kai free?
Yes. Kai is open-source software under the Apache-2.0 licence.
Is Kai safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Kai with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Kai be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does Kai run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Kai?
The versions page lists all 41 versions with links to their official installer files, back to March 10, 2026.
What are alternatives to Kai?
Signal, Discord, Telegram Desktop, Slack and Rocket.Chat. The alternatives page compares them.
