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Aider vs Qwen Code: catalog facts
Aider	Qwen Code
Free Aider itself is free and open source under Apache 2.0. You pay whatever your chosen model…	Free The tool is free and open source; the model provider you connect may charge for usage.
Windows, macOS, Linux, Command line	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	Open source and actively developed Works in the terminal alongside existing tools
Needs an API key and per-token spend unless you run a local model Terminal-driven; there is no graphical interface	Terminal only, no graphical interface Needs access to a language model, which may carry costs
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License not stated
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 September 26, 2026

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