Aider vs Devin
Two Coding AI tools, side by side. Both are verified against their own live sites. Here is what each does well and who it is for, so you can choose what fits.
Aider
aider.chat
AI pair programming in your terminal
Best forTerminal-comfortable developers who want git-native, model-flexible AI assistance in existing codebases
What it doesAider is an open-source, terminal-based AI pair programming tool that edits code in your local git repository and works with models such as Claude, OpenAI, and DeepSeek. It maps the codebase for context and commits changes with sensible messages.
Capabilities
Visit Aider →- Terminal pair programming with multiple LLMs
- Automatic git commits with descriptive messages
- Codebase mapping for larger projects
- Support for 100+ languages
- Voice-to-code and image/web context
Devin
www.devin.ai
An autonomous AI software engineer
Best forEngineering teams handling large, complex, multi-repository projects and modernizations
What it doesDevin, by Cognition, is an autonomous AI software engineer available via cloud, desktop, and CLI. It handles tasks such as code migrations, refactors, pull request review, bug fixing, and documentation, and integrates with tools like GitHub, Linear, and Slack.
Capabilities
Visit Devin →- Code migrations and large-scale refactors
- Pull request review and visual QA
- Bug fixing and incident resolution
- Integrations with GitHub, Linear, Slack and Datadog
- Learns codebases over time
How to choose
Choose Aider if you are terminal-comfortable developers who want git-native, model-flexible ai assistance in existing codebases. Choose Devin if you are engineering teams handling large, complex, multi-repository projects and modernizations. Both sit in Coding; the right pick depends on your exact workflow and budget.
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