AI coding tools
Aider
Open-source agentThe original open-source terminal pair-programmer with git-native workflow.
Key facts (mid-2026)
- Maker
- Open source (Paul Gauthier)
- Pricing
- Free (BYO API key)
- Models
- Any via API: Claude, GPT, Gemini, DeepSeek, local models
- Platforms
- Terminal (any OS), works with any editor
- MCP support
- No
- Open source
- Yes
Strengths
- Git-native: every AI change is a clean commit you can review/revert
- Runs its own public coding benchmark (aider polyglot leaderboard)
- Lightweight, scriptable, no vendor lock-in
Weaknesses
- More manual than modern agents (you steer file context)
- No MCP; smaller feature surface than commercial tools
Our verdict
Best for: Terminal purists who want a transparent, git-first AI workflow for free.
Still excellent for surgical, commit-by-commit work — and its leaderboard is a public service.
FAQ
How much does Aider cost?
Free (BYO API key).
Which models does Aider use?
Any via API: Claude, GPT, Gemini, DeepSeek, local models
Who is Aider best for?
Terminal purists who want a transparent, git-first AI workflow for free.
No affiliate links on coding-hub pages. Opinions from daily use; pricing approximate — check the official site.