Aider
Open-source AI pair programming in your terminal
CLI-first developers who want a flexible, open-source AI pair programmer with full model choice
Good Fit If You're...
Terminal-first developer who doesn't want to leave the command line
Aider runs in your terminal alongside git, make, and your other CLI tools. No IDE needed, no GUI to learn. If tmux is your workspace, Aider fits right in.
Developer who wants AI with excellent git integration
Aider automatically commits each change with meaningful commit messages. Your git history stays clean and every AI edit is a reviewable, revertable commit.
Working with multiple AI models depending on the task
Use Claude for complex refactors, GPT-4 for quick edits, and a local model for sensitive code. Aider lets you switch models mid-session without changing tools.
Contributing to open-source projects
Aider's clean git commits and terminal-native workflow make it easy to generate well-formatted patches and PRs for open-source projects. No IDE lock-in, no proprietary formats.
Pricing
| Plan | Price | Credits |
|---|---|---|
| Free | $0 | Free and open-source — bring your own API key |
Hidden costs to be aware of:
- API costs for your chosen LLM provider (Anthropic, OpenAI, etc.)
Pricing last verified: 2026-03-24
Strengths & Limitations
Strengths
- +Free and open-source (Apache 2.0)
- +Works with any LLM — Claude, GPT-4, Gemini, local models
- +Terminal-native: fits into any workflow, no IDE required
- +Excellent git integration — auto-commits changes with meaningful messages
Limitations
- -CLI-only — no GUI, not for visual learners or non-developers
- -Requires your own API key and managing LLM costs
- -Steeper learning curve than IDE-based tools
- -No built-in code completion — it's a chat/edit tool, not an autocomplete
What Real Users Say
“Aider + Claude is my daily driver. The git integration alone saves me 20 minutes a day.”
How It Compares
Similar Tools
Direct link — no affiliate relationship
Last updated: 2026-03-24