01 / Extract
Unzip the download.
Choose Extract All and put the folder somewhere you can write to, such as Documents. Keep the path short.
Download Calythe Agent for Windows.
Bring your model. Keep your project close.
Windows 10 & 11 · 64-bit · Invite-only pre-release

Invite only, for now.
Have a beta key? Enter it below.Keep the zip until you’ve finished installing.
Windows pre-releaseInvite-only access
Keep everything in the same folder.
01 / Extract
Choose Extract All and put the folder somewhere you can write to, such as Documents. Keep the path short.
02 / Open
Open the CalytheAgent folder and launch CalytheAgent.exe. Starting it again brings the existing window forward.
03 / Connect
Create a local account, then connect a supported provider, a ChatGPT connection, or a local model through Ollama.
Latest release
Calythe Agent 0.1.6: improved model selection and provider catalog, Deep Search and research improvements, memory tools, and Windows GUI startup fixes.
Released 2026-09-27
Back to download ↑CalytheAgent-0.1.6-win64.zipa4ee8d6328b12e7087b2d3014c2c7ab10e0f3793b2a65cdf99f8c1f6b2d6c75aThe in-app updater checks the release signature and checksum before installing an update.
The first group
Tell us why you want to beta test, what you’ll use Calythe for, which model you’ll connect, and your Windows version.
The pre-release is shared with a small group first. Accepted testers receive a beta key for the Windows download.
Apply for beta accessA little more context
A 64-bit Windows 10 or Windows 11 computer, a writable project folder, and a supported model connection. The app uses Microsoft Edge WebView2, included with Windows 11 and current Windows 10 installations.
Yes. Use “Ask for access” to apply by email. If you already have a key, enter it in the download card.
Update from inside the app. It checks the signed release and checksum, keeps your chats and settings, and can restore the previous version if a new version fails to start.
Your account, project memory and settings are stored locally. Your chosen model provider processes the context sent to it.
Use the Contact page or email calythe.dev@gmail.com.