Aider

Open-source AI pair programmer for your terminal.

7.8/10

At a glance

Vendor: Open source
Pricing: Free and open source (pay only for your LLM API usage)
Free tier: Yes
Best for: Open-source AI pair programmer for your terminal.

Our verdict

The hacker's choice. Bring your own API key, get elite-level pair programming for pennies. Setup takes effort, but the value is unbeatable.

Pricing: Free and open source (pay only for your LLM API usage) · Vendor: Open source

Scores

★★★★☆7.8/10

Ease Of Use6/10

Output Quality8/10

Speed7/10

Value10/10

Pros & cons

Pros

Free and open source
Works with any LLM API
Git-native workflow

Cons

Terminal only, steeper learning curve
You manage your own API keys and costs
Less hand-holding than commercial tools

📡 On our radar: we re-check this tool's pricing and feature set against official sources on a rolling basis. Last site-wide refresh: 2026-09-29. Prices change fast — confirm on the official site before buying.

FAQ

Is Aider worth it?

The hacker's choice. Bring your own API key, get elite-level pair programming for pennies. Setup takes effort, but the value is unbeatable.

How much does Aider cost?

Free and open source (pay only for your LLM API usage). Prices change — check the official site for the latest.

What is Aider best for?

Open-source AI pair programmer for your terminal.

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