AI pair programming in your terminal with Claude, GPT-5.5, and local models
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17 reviews trackedThe Bottom Line
Entry price
Paid plans only
Biggest pro
CLI-based AI coding
Biggest con
Terminal-only
TL;DR - Aider
- Aider is an AI pair programming tool that runs in your terminal and edits code directly in your repo
- It understands your codebase context and can make changes across multiple files in one conversation
- Free and open-source-bring your own API key from OpenAI, Anthropic, or others
Pricing: Paid only
Best for: Enterprises & pros
4.7/5 across review platforms
What is Aider?
Aider turns your terminal into a pair programming session with advanced models. Point it at your codebase and have a conversation about what you want to build or change. The AI sees your files, understands the context, and makes edits directly. Git integration tracks every change so you can review and roll back. It handles multi-file refactoring that would take hours manually. Developers using Aider describe it as having a skilled colleague available 24/7. Complex changes that once required careful planning happen through conversation.
Available on: Web, macOS, Linux, Windows
Pros & Cons
Pros
- CLI-based AI coding
- Multi-file edits
- Git integration
- Open source
- Many models supported
Cons
- Terminal-only
- Learning curve
- BYOM needed
- Not for everyone
- API costs
Ratings Across the Web
4.7(17 reviews)
Ratings aggregated from independent review platforms. Learn more
Key Features
AI pair programmingTerminalGPT-4/ClaudeGit integrationMulti-file editingOpen source
Pricing Plans
Pricing checked Jul 10, 2026
Most Popular
Free
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Usage-based pricing
- MIT license
- Bring your own API key
- All LLM providers
- Local models supported
Reviews
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4.7/5
Across 17 verified user reviews on G2
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Aider FAQ
How does Aider facilitate multi-file refactoring?
Aider understands the context of your entire codebase and can make edits directly across multiple files. This capability allows it to handle complex refactoring tasks that would typically consume many hours if done manually.
Which teams benefit most from Aider?
Teams looking to integrate AI pair programming directly into their terminal workflow will find Aider most beneficial. It is designed for developers who want to converse with an AI to build or change code, especially for tasks involving multi-file edits.
How is Aider priced?
Aider is a paid product and does not include a permanently free tier. Users are also responsible for their own API costs associated with using the advanced models.
What kind of limitations does Aider have?
Aider operates exclusively within the terminal environment, which may not suit all developers. It also requires users to bring their own models (BYOM) and has a learning curve to master its conversational interface.
Can Aider track changes made to the codebase?
Yes, Aider includes Git integration to track every change it makes to your codebase. This allows developers to easily review and roll back any modifications as needed.
How does Aider compare to GitHub Copilot?
Aider provides a CLI-based AI coding experience with multi-file editing capabilities and Git integration, allowing for conversational development across an entire codebase. In contrast, GitHub Copilot typically offers in-editor code suggestions and completions.
Source: aider.chat