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TestedStack

Aider

Aider

Open-source pair programmer in the terminal

Pending testOpen source

Score

Quality
Pending
Price
Pending
Speed
Pending
Ease of starting
Pending

Last tested: not yet. Pending is not a zero.

Waiting on the vibe-coding bench: a small multi-page web app from a written spec. No score until that test is published.

Plain-language take

Written from public product information. This is not a test result.

A terminal tool that edits a local git repo with whatever model API key you bring.

Pricing

Open source · checked 16 October 2026

Aider is open source. You pay the model provider whose API key you configure. See aider.chat for setup.

Pricing source

Use cases

Alternatives

  • Claude Code — Anthropic's coding agent for the terminal and editor
  • Cline — Open-source coding agent for VS Code
  • Codex — OpenAI's coding agent for a repository

Comparisons