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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.

Other comparisons

GitHub Copilot vs Continue

Keep using Copilot-style IDE assistance with any LLM of your choice.

GitHub Copilot vs Tabby

Teams that need fully self-hosted completions on their own GPU.

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