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Kaku vs Calyx: catalog facts
Kaku	Calyx
Free Free to download; source code is published on GitHub.	Free Free and open source under the MIT licence.
macOS	macOS
Works out of the box with no configuration required Tuned for AI coding workflows in the terminal	Built on the Ghostty terminal core Designed for supervising several coding agents
macOS only Younger project with less shared documentation	macOS only No tagged GitHub releases
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.