Reason

Reason 0.5.5

Provider-neutral reasoning CLI with evidence-bound verification

Download for Windows

About Reason

Reason is the native CLI for Reasoning Harness, an evidence-grounded AI runtime that keeps model-generated candidates separate from verified factual authority.

Technical details

Publishergit-ksk
Version0.5.5
LicenseMIT
Installer typezip
Architecturex64
Package IDgit-ksk.Reason

Install Reason from the command line

Install with Windows Package Manager
winget install --id=git-ksk.Reason -e
Update to the latest version
winget upgrade --id=git-ksk.Reason -e
Uninstall
winget uninstall --id=git-ksk.Reason -e

Reason adds this command to the command line: reason.

aiclievidencellmreasoningverification

Reason version history

0.5.4
0.5.2

Frequently asked questions

Is Reason free?

Yes. Reason is free and open-source software released under the MIT license.

What is the latest version of Reason?

The latest version is 0.5.5.

Is it safe to download Reason?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 6c319a8c2e06e2c9b8146db7f38c07afb156ebe7770959f3f2cfcc1c4b15566f.

Which Windows versions does Reason support?

Reason runs on Windows and is available for 64-bit (x64) systems.

How do I uninstall Reason?

Open Settings › Apps › Installed apps, find Reason and select Uninstall. From the command line, run winget uninstall --id=git-ksk.Reason -e.

Is there a portable version of Reason?

Yes. Reason is available as a portable ZIP archive (reason-v0.5.5-windows-x86_64.zip, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.