Side by side
| Property | Aider | Windsurf |
|---|---|---|
| Type | Product | Product |
| Category | AI coding tools | AI coding tools |
| Made by | Aider (community) | Cognition |
| Pricing | Free | Free plan + paid |
| Open source | Yes | No |
| API | No | No |
| Platforms | Terminal | IDE, Desktop |
| Startup | No | Yes |
Features
Only Aider
- terminal
- bring your own key
Both
- coding agent
- multi-model
Only Windsurf
- ai editor
- autocomplete
- mcp