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Aider vs Codewhale: catalog facts
Aider	Codewhale
Free Aider itself is free and open source under Apache 2.0. You pay whatever your chosen model…	Free Free and open source under the MIT licence; hosted model usage may cost extra.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Commits every change to git automatically, so the usual diff and revert tools work Maps the whole codebase, which is what makes it usable on projects of real size	Works with hosted or local models of your choice Can run tests to verify its own changes
Needs an API key and per-token spend unless you run a local model Terminal-driven; there is no graphical interface	Still at a 0.x pre-release version Most interface translations are only partial
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: MIT
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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