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GitHub Copilot vs Aider
GitHub Copilot vs Aider
A side-by-side look at GitHub Copilot (the paid SaaS) and Aider (the open source alternative). Use this page to decide if the switch fits your team and workflow.
| GitHub Copilot | Aider | |
|---|---|---|
| Tagline | AI pair programmer trained on public code. | AI pair programming in your terminal. |
| License | Proprietary SaaS | Apache-2.0 |
| Pricing | Individual $10/month; Business $19/user/month. | Free to self-host |
| Self-host option | No | Yes — difficulty 1/5 |
| Hosted cloud available | Yes (only option) | No |
| Desktop apps | Varies by product | Windows, macOS, Linux |
| Mobile apps | Official apps typically available | None official |
Ad slot — between tables
Best for
Terminal power users who want AI edits and auto-commits.
Aider strengths
- Git-aware — edits files and commits for you.
- Works with any OpenAI-compatible model.
- Lightweight — runs as a CLI.
Aider weaknesses
- Terminal-based — no GUI for editors.
- Model API usage costs can climb on large repos.
- Not a code-completion tool (different UX from Copilot).
What's the catch with GitHub Copilot?
- Code sent to Microsoft/OpenAI for completions.
- Subscription-only.
- Licensing questions around training data still unresolved for some teams.
Still unsure?
Check the full list of alternatives to GitHub Copilot: see GitHub Copilot alternatives, or learn more about Aider on its project page.