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Aider vs Grok Build: catalog facts
Aider	Grok Build
Free Aider itself is free and open source under Apache 2.0. You pay whatever your chosen model…	Freemium Available to try for free; extended use is tied to Grok plans.
Windows, macOS, Linux, Command line	macOS, 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	Plan mode that blocks edits until you approve Supports skills, plugins, hooks and MCP servers
Needs an API key and per-token spend unless you run a local model Terminal-driven; there is no graphical interface	Depends on xAI's hosted Grok models Installation is through a curl-to-bash script
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

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