Aider
Paul Gauthier (open source)
AI pair programming in the terminal that edits your git repo.
From /monthFree
BillingBYO-key (usage)
Contextmodel-dependent
Best forTerminal-first devs who want git-native AI edits
Free OSS; pay for model usage via any provider
Top models
Claude Sonnet 4GPT-5DeepSeek
Limits
whatever your API key allows
Free tier
free software (model usage billed separately)
Strengths
- Git-native workflow
- Works with any API provider
- Lightweight CLI
Weaknesses
- CLI only
- You supply & pay for the model
Go to Aider → Affiliate notice.