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Aider

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Open-source AI pair programming in your terminal with automatic git commits

Updated Nov 27, 2025
AI Coding CLIOpen SourcemacOSLinuxWindows

About

Aider (v0.85.4) is a powerful open-source AI pair programming tool that runs entirely in your terminal. It excels at making real-world changes to codebases, automatically creating git commits with descriptive messages. Aider works with all major AI models including GPT-5, Claude 4 Opus, Claude 4 Sonnet, Claude 3.7 Sonnet, DeepSeek R1, GPT-4o, and local models, making it budget-friendly and flexible. The framework works best with models like Claude 3.7 Sonnet, DeepSeek R1, and GPT-4o. Perfect for developers who prefer terminal-based workflows, Aider can edit multiple files simultaneously and understands your entire project structure.

Key Features

  • Automatic git commits with descriptive messages
  • Multi-file editing in terminal
  • Works with GPT-5, Claude 4, DeepSeek R1, and local models
  • Best performance with Claude 3.7 Sonnet, DeepSeek R1, GPT-4o
  • Repository-wide understanding
  • Cost-effective with model switching
  • Voice coding support
  • Edit existing code or create new files
  • Works on any git repository

Use Cases

  • Terminal-based AI pair programming
  • Automated code refactoring with git commits
  • Budget-friendly AI coding (model switching)
  • Working with large codebases
  • Voice-controlled coding
  • Multi-file project changes

Technical Details

Languages

PythonJavaScriptTypeScriptJavaC++GoRustRubyPHPAll major languages

AI Models

GPT-5GPT-4oGPT-4GPT-4 TurboClaude 4 OpusClaude 4 SonnetClaude 3.7 SonnetClaude 3.5 SonnetDeepSeek R1Local models (Ollama)Any OpenAI-compatible API

Integrations

GitGitHubGitLabTerminalAny git repository

Frequently Asked Questions

What is Aider?

Aider (v0.85.4) is a powerful open-source AI pair programming tool that runs entirely in your terminal. It excels at making real-world changes to codebases, automatically creating git commits with descriptive messages. Aider works with all major AI models including GPT-5, Claude 4 Opus, Claude 4 Sonnet, Claude 3.7 Sonnet, DeepSeek R1, GPT-4o, and local models, making it budget-friendly and flexible. The framework works best with models like Claude 3.7 Sonnet, DeepSeek R1, and GPT-4o. Perfect for developers who prefer terminal-based workflows, Aider can edit multiple files simultaneously and understands your entire project structure.

Is Aider free?

Yes, Aider is open source and free to use. Open-source terminal tool, Multi-model support (GPT-4, Claude, local), Automatic git commits

What programming languages does Aider support?

Aider supports 10+ programming languages including Python, JavaScript, TypeScript, Java, C++, Go, Rust, Ruby, PHP, All major languages.

What AI models does Aider use?

Aider is powered by GPT-5, GPT-4o, GPT-4, GPT-4 Turbo, Claude 4 Opus, Claude 4 Sonnet, Claude 3.7 Sonnet, Claude 3.5 Sonnet, DeepSeek R1, Local models (Ollama), Any OpenAI-compatible API.

What platforms does Aider support?

Aider is available on macOS, Linux, Windows.

What can Aider do?

Aider provides code generation, debugging, AI chat, agentic/autonomous mode. Key features include: Automatic git commits with descriptive messages, Multi-file editing in terminal, Works with GPT-5, Claude 4, DeepSeek R1, and local models.

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Pricing

Free (Open Source)

$0 (pay only for AI model usage)
  • Open-source terminal tool
  • Multi-model support (GPT-4, Claude, local)
  • Automatic git commits
  • Multi-file editing
  • Works with any repository

Company

Name
Paul Gauthier (Open Source)
Founded
2023
Location
Open Source
Users
50K+ developers

Links

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