Aider vs Sourcery

Aider (Paul Gauthier (open source)) and Sourcery (Sourcery / Sourcegraph) compared head-to-head: prices from $0 and $0, model-dependent vs. repo context context, free tiers, models, limits plus strengths and weaknesses. Find out which AI coding agent fits your workflow.

Aider vs Sourcery — Category side-by-side

Provider	Aider Paul Gauthier (open source)	Sourcery Sourcery / Sourcegraph
From /month	Free	Free
Billing	BYO-key (usage)	freemium + subscription
Top models	Claude Sonnet 4, GPT-5, DeepSeek	frontier models
Context	model-dependent	repo context
Limits	whatever your API key allows	Free: 20 issue investigations/mo
Free tier	free software (model usage billed separately)	free for open-source repos
Best for	Terminal-first devs who want git-native AI edits	Teams wanting automated refactoring & code review
Strengths	Git-native workflow Works with any API provider Lightweight CLI	Automated refactoring AI code review Strong Python support
Weaknesses	CLI only You supply & pay for the model	Narrow refactoring focus Now folded into Sourcegraph

Recommendation by priority

💰 On a budget? Aider ($0) is cheaper than Sourcery ($0).

Aider is especially strong when you care about "Terminal-first devs who want git-native AI edits".

Go to Aider → Go to Sourcery →

Frequently asked questions: Aider vs Sourcery

Aider or Sourcery: which is cheaper?

The entry price depends on each provider and plan tier. This page shows the current indicative values side by side.

Which offers more context — Aider or Sourcery?

Aider reaches model-dependent, Sourcery reaches repo context. More context helps with long files and large repos.

Is there a free tier for Aider or Sourcery?

Yes — details on free tiers and free quotas are in the side-by-side table above.