What is the difference between Aider and Devin?

Aider focuses on Multi-LLM support and is free, while Devin specializes in Autonomous task completion and is paid. Both are AI Coding tools.

Is Aider or Devin better?

It depends on your needs. Aider excels at Completely free and open source, while Devin is known for Fully autonomous workflow. Compare their features above to decide which fits your workflow.

Aider vs Devin

AI Coding tools comparison · Updated 2026

Choosing between Aider and Devin? Both are popular AI Coding tools. Aider is free to use and focuses on Multi-LLM support. Devin starts at From $500/mo and specializes in Autonomous task completion. Here's a detailed side-by-side comparison to help you decide.

At a Glance

	Aider	Devin
Category	AI Coding	AI Coding
Pricing	free	paid
Starting Price	Free	From $500/mo
Best For	coding, open-source, cli	coding, ai-agent, automation
Features	6 listed	6 listed

Aider

Open-source terminal AI pair programmer with git integration and multi-LLM support.

AI Coding free

Visit Aider → Alternatives

Devin

Fully autonomous AI software engineer handling end-to-end coding tasks.

AI Coding paid

Visit Devin → Alternatives

Feature Comparison

Aider	Devin
✓ Multi-LLM support	✓ Autonomous task completion
✓ Auto git commits	✓ Built-in shell and editor
✓ Multi-file editing	✓ Web browsing capability
✓ Repository mapping	✓ Deployment handling
✓ Voice coding	✓ Slack integration
✓ Linting integration	✓ Session replay

Pricing Comparison

Aider

free

Free and open source. Requires your own LLM API keys.

Devin

paid

Starting at $500/mo

Team plan at $500/mo includes usage credits. Enterprise pricing custom.

Pros & Cons

Aider

Pros

+ Completely free and open source
+ Works with many LLMs
+ Automatic git integration
+ Active community

Cons

− Requires own API keys
− Terminal-only interface
− Learning curve for configuration

Devin

Pros

+ Fully autonomous workflow
+ Handles complex multi-step tasks
+ Can browse docs and learn
+ Integrates with team tools

Cons

− Expensive pricing
− Can be slow on complex tasks
− May need supervision for critical code
− Limited availability

The Verdict

Both Aider and Devin are strong AI Coding tools. Aider stands out for Completely free and open source, making it ideal if that's your priority. Devin excels at Fully autonomous workflow, which may be more important for your workflow. Price-wise, Aider is free while Devin is paid, so budget may also factor in.