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Aider

Aider is an AI coding agent by Paul Gauthier (open source).

Open-source AI pair programming in your terminal.

CodingFree

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aider.chat

FreePrice
CodingCategory
SeveralRuns on
YesOpen source
October 14Checked, with sources

What it does

Aider is an open-source tool for pair programming with AI in your terminal. It edits files in your git repo and commits changes, working with the model of your choice.

  • Cloud and local LLMs
  • Maps your codebase
  • 100+ code languages
  • Git integration
  • Images & web pages
  • Voice-to-code
  • Edits code in your local repo
  • Automatic git commits

Best for

Starting a new projectBuilding on an existing codebasePair programming with LLMs

The maker

Paul Gauthier (open source)

“AI Pair Programming in Your Terminal”In their words

Pros & cons

Pros

  • The maker says you can review, manage and undo its changes with Git tools.

Cons

  • You must set up an AI model and your dev environment first.

Pricing

Free

Free and open source; you pay for model usage

Prices change. Confirm on the official site.

Runs on

iOSAndroidMacWindowsLinuxWebCLIChromeWhatsAppTelegramSMSAPI

Lit = listed by the maker. Dimmed = not listed.

Terminal; fits into your existing editor setup.

Works with

GitDiscordGitHub

Under the hood

Claude 3.7 SonnetDeepSeek R1DeepSeek Chat V3OpenAI o1o3-miniGPT-4o

Models as stated by the maker.

Follow

Sources

Last verified October 14, 2026

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