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Reason

v0.5.5
git-ksk

Provider-neutral reasoning CLI with evidence-bound verification

Open source MIT Security 64 Health 77
Windows

Download

Choose the file for your device below.

Download for Windows

ZIP · x64 · — — from github.com

SHA-256 checksum available

Update confidence: Medium

Latest release 0.5.5

Mixed signals — read the reasons before updating.

  • Released recently (days: 1) — reports may still come in.
  • No newer version was withdrawn.
  • Every file has a checksum published by the publisher.
  • Signatures could not be checked.
  • No open report about this release.
  • No vulnerability feed for this software.
  • Based on stored facts about this release; it is a guide, not a guarantee.
Watch Compare Add to plan
Latest
0.5.5
Licence
Open source
Verification
SHA-256
Platforms
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.
Platforms
Windows
Licence
Open source (MIT) — source code is public under an open-source licence; free to use, study and share.

Official downloads

Version 0.5.5 · released 30 October 2026 · via the WinGet repository

Release source
FileSizeVerification
Windows · x64 · ZIP Best for you
reason-v0.5.5-windows-x86_64.zip — github.com
 —
6c319a8c2e06e2c9b8146db7f38c07afb156ebe7770959f3f2cfcc1c4b15566f
SHA-256 · published by the publisher / package manifest
Scan pending Signature not verified
Download Not scanned

Clicking “Download” takes you straight to the file on the publisher's official server. Verify the SHA-256 before running it: on Windows «Get-FileHash file», on macOS / Linux «shasum -a 256 file».

Install guide

The best way to install, update and remove this program on your system, from the official source.

Windows
RecommendedWinGet
Source: winget community repository (Microsoft)
Install
winget install --id git-ksk.Reason --exact --source winget
Update
winget upgrade --id git-ksk.Reason --exact --source winget
Remove
winget uninstall --id git-ksk.Reason --exact
AlternativeChocolatey
Source: community.chocolatey.org
Install
choco install reason -y
Update
choco upgrade reason -y
Remove
choco uninstall reason -y

Chocolatey community packages are maintained by volunteers; WinGet is preferred when available.

Security & project health

Trust Network profile of Reason: verified levels 0 of 5

Security

64

How trustworthy the source and files are: verified publisher, checksums, HTTPS, official host, signature, scan, links and known vulnerabilities.

  • Verified publisher0/20
  • SHA-256 checksums15/15
  • HTTPS downloads10/10
  • Official download host10/10
  • Code signature5/10
  • File scan7/15
  • Working links2/5
  • No open vulnerabilities15/15

Health

77

Is the project alive? Release recency and cadence, community, maintenance status and data completeness.

  • Recent release35/35
  • Releases in the last 12 months10/20
  • Community10/20
  • Actively maintained15/15
  • Complete information7/10

Known vulnerabilities

Vulnerability tracking is not configured for this program yet.

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