AI coding agents that write, test, and review code across your whole codebase.
View detailsAider
A terminal-based AI pair programmer that edits code in your local Git repository through a chat interface.
Aider is a terminal-based AI pair programmer that edits code in your local Git repository through a chat interface. You describe the change you want, and Aider edits the files, runs tests, and commits the result, showing you a diff you can review. It works with many large language models, including Claude, GPT, and local models.
Key Features
- Chat-based code editing directly in your Git repository
- Works with Claude, GPT, Gemini, and local models
- Automatic commits with reviewable diffs
- Repository map gives the model project-wide context
- Runs tests and lints after making changes
- Voice input and multi-file editing support
Pricing
| Plan | Price | Details |
|---|---|---|
| Free | $0 | Free and open source under the Apache licence; API costs depend on the model you choose. |
Prices as listed in 2026 research. Always check the official site for the latest price — plans change. Free plan: Yes — it has a free plan.
Popular with: Developers
How it works
Because Aider works with Git, every change is tracked and easy to undo. It maps your repository so the model understands the structure of your project, and it can work across several files at once. Developers use it for new features, bug fixes, and refactoring, often in short back-and-forth sessions.
Aider itself is free and open source. The only cost is whatever your chosen model provider charges for API usage, which you control by picking a cheaper or local model. It is a strong choice for developers who prefer the terminal and want full control over their model and their costs.
Pros and Cons
✓ Pros
- Completely free and open source
- Works with almost any language model
- Git integration makes every change reviewable and reversible
- Excellent for terminal-first developers
✗ Cons
- Command-line only, so no visual editor experience
- You pay your own model API costs on top
- Needs some setup before it feels smooth
Frequently Asked Questions
Is Aider free?
Yes — Aider has a free plan. Free open source; you pay your own model API costs
What is Aider best for?
developers who live in the terminal and want an AI pair programmer working directly in their Git repo.
What kind of tool is Aider?
Aider is a Coding Assistants tool on VerlumoAI.
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View detailsLast reviewed: November 2026