Aider vs Devin
Aider (CLI / terminal agent, Free (open source) + API costs) vs Devin (cloud autonomous agent, From $20/mo (Pro)): pricing, models, open-source status, benchmarks, and best use cases. See which AI coding agent is right for your workflow.
Aider
Devin
| Comparison | Aider | Devin |
|---|---|---|
| Category | CLI / terminal agent | cloud autonomous agent |
| Type | Terminal agent | Cloud autonomous agent |
| Vendor | Community (Paul Gauthier) | Cognition |
| Pricing | Free (open source) + API costs | From $20/mo (Pro) |
| Open source | Yes | No |
| Models | Any (Claude, GPT, Gemini, DeepSeek, local Ollama) | Claude, GPT, Gemini, Cognition SWE-1.6 |
| Benchmarks | Not published | Not published |
| Best for | Git-native workflows, model flexibility, budget-conscious developers | Delegated issue work, async PR generation, engineering throughput |
Aider is open source and best for git-native workflows, model flexibility, budget-conscious developers. The original open-source AI pair programmer. Git-native CLI that works with any LLM provider including local models. Strong git integration and an active community.
Devin is proprietary and best for delegated issue work, async pr generation, engineering throughput. Cognition's autonomous cloud agent. Assign issues or tasks; Devin works asynchronously — creating branches, writing code, running tests, and opening PRs. Self-serve plans use token quotas (March 2026); Enterprise uses ACUs.
Both tools are part of the 2026 AI coding agent landscape. The right choice depends on whether you need a CLI / terminal agent or a cloud autonomous agent, your budget, and which models you prefer. See the full list of coding agents on our coding agents page to compare more options.