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Kiro vs Void: catalog facts
Kiro	Void
Freemium Free to start, with paid plans that include usage credits.	Free Free and open source; you pay any model provider you connect to.
Command line	macOS
Spec-driven workflow from requirements to tasks Property-based tests to check correctness	Bring your own model, including self-hosted open models No private backend between you and the provider
Relies on cloud AI models and an account Heavier use requires a paid plan	Still distributed as a beta Needs an API key or a self-hosted model for AI features
Downloadable app	Downloadable app
Closed source	Open source
License: Proprietary	License not stated
Account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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