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Aider vs GitHub Copilot CLI: catalog facts
Aider	GitHub Copilot CLI
Free Aider itself is free and open source under Apache 2.0. You pay whatever your chosen model…	Freemium Use depends on a GitHub Copilot plan; see GitHub's plans page for current tiers.
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	Coding agent that works directly in a local project Supports custom agents, MCP and LSP servers
Needs an API key and per-token spend unless you run a local model Terminal-driven; there is no graphical interface	Requires a GitHub account and Copilot plan Needs a network connection to GitHub's models
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	Account 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.