Aider vs Windsurf
Side-by-side comparison of Aider and Windsurf — features, pricing, and trade-offs.
| Aider | Windsurf | |
|---|---|---|
| Tagline | Open-source AI pair programmer in your terminal. | Codeium's agentic IDE — Cursor's main rival. |
| Pricing model | free | freemium |
| Lowest paid tier | Free | $15/mo |
| Launched | 2023 | 2024 |
| Best for | OSS lovers, model agnostic workflows | full-stack devs, Cursor switchers, agentic coding |
| Top features | Open source, Git-aware, Multi-model (Claude, GPT, local) | Cascade agent, Multi-file edit, Inline chat |
Aider
Open-source AI pair programmer in your terminal.
- + Free
- + Bring-your-own model
- + Privacy-friendly
- − Less polished UX
- − Setup overhead
Windsurf
Codeium's agentic IDE — Cursor's main rival.
- + Strongest Cursor alternative
- + Cheaper Pro tier
- + Good free tier
- − Younger ecosystem
- − Fewer extensions