Atlas / tool

Aider

Terminal pair programmer · Aider (open source)

Verdict: Lightweight git-aware terminal option for developers comfortable managing their own API keys.

Pricing (as published): Free open-source tool; LLM costs from your provider. Paid plan: not published on the fetched official page.
Limits: Limited by your model provider.
Compatibility: Terminal; works with cloud and local LLMs; git-integrated.
Stacks: terminal
Open source: yes

Official source: https://aider.chat/ · verified 2026-10-16. Based on official docs, not hands-on tested.