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Codewhale vs fx: catalog facts
Codewhale	fx
Free Free and open source under the MIT licence; hosted model usage may cost extra.	Free Free and open source under Apache-2.0.
Windows, macOS, Linux, Command line	Command line
Works with hosted or local models of your choice Can run tests to verify its own changes	Supports interactive sessions and one-off requests Works with local and cloud inference providers
Still at a 0.x pre-release version Most interface translations are only partial	Marked experimental, with frequent changes expected
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: Apache-2.0
Not stated if an account is 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 2, 2026	Official website Full listing and sources Checked October 8, 2026

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