Sourcery
London AI code reviewer that comments on every pull request and turns diffs into diagrams
Quick Overview
| Company | Sourcery.AI Limited |
|---|---|
| Category | AI Coding Assistants |
| Headquarters | London, United Kingdom |
| Founded | 2018 |
| EU Presence | United Kingdom |
| Open Source | No |
| Compliance | SOC 2, GDPR (Trust Center) |
| Pricing | Free for open-source repos / Pro $12 per seat/month / Team $24 per seat/month / Enterprise custom pricing with self-hosting |
| Free Option | Free trial on paid plans |
| Replaces | CodeRabbit, GitHub Copilot code review, manual PR review |
Detailed Review
Sourcery does one job: it reads every pull request and leaves the comments a senior reviewer would, including line-by-line suggestions, change summaries and diagrams that make a large diff easier to reason about. Security scans run alongside the review, and the Team plan's bring-your-own-LLM option lets a team point Sourcery at a model of its choice rather than accepting a fixed one.
Sourcery.AI Limited is a UK company incorporated in 2018, registered in London, with UK law and London courts governing its terms — a shorter, plainer jurisdiction story than tools that split EU and US regions. Both paid plans offer a free trial, and open-source repositories get Pro-level review for up to three repositories at no cost.
Pricing is transparent and modest next to the coding assistants elsewhere in this category: Pro at $12 per seat per month, Team at $24, Enterprise on request with self-hosting. What it does not do is write or complete code — it is a reviewer, not a generator, so it pairs with rather than replaces a tool like Continue or JetBrains AI Assistant.
What Sourcery does well
- Comments on every pull request automatically
- Change summaries and diagrams for large diffs
- Bring-your-own-LLM on the Team plan
- UK company, plain single-jurisdiction terms
- Transparent per-seat pricing from $12/month
Where Sourcery falls short
- Review only — does not generate or complete code
- Free tier limited to three open-source repositories
- Self-hosting is an Enterprise-only feature
- Smaller feature set than full coding-assistant platforms
Standout feature. Bring-your-own-LLM on the Team plan: the one reviewer here that lets you swap the model underneath it rather than accepting the vendor's choice.
Pros and Cons
Pros
- Comments on every pull request automatically
- Change summaries and diagrams for large diffs
- Bring-your-own-LLM on the Team plan
- UK company, plain single-jurisdiction terms
- Transparent per-seat pricing from $12/month
Cons
- Review only — does not generate or complete code
- Free tier limited to three open-source repositories
- Self-hosting is an Enterprise-only feature
- Smaller feature set than full coding-assistant platforms
Alternatives to Sourcery
Frequently Asked Questions
What is Sourcery?
Sourcery does one job: it reads every pull request and leaves the comments a senior reviewer would, including line-by-line suggestions, change summaries and diagrams that make a large diff easier to reason about. Security scans run alongside the review, and the Team plan's bring-your-own-LLM option lets a team point Sourcery at a model of its choice rather than accepting a fixed one.
Where is Sourcery based?
Sourcery operates from London, United Kingdom, which places it under United Kingdom. Compliance: SOC 2, GDPR (Trust Center).
What does Sourcery cost?
Free for open-source repos / Pro $12 per seat/month / Team $24 per seat/month / Enterprise custom pricing with self-hosting. Free trial on paid plans.
Who is Sourcery best for?
Teams wanting an AI reviewer on every pull request without a big platform. Bring-your-own-LLM on the Team plan: the one reviewer here that lets you swap the model underneath it rather than accepting the vendor's choice.
What are the drawbacks of Sourcery?
Review only — does not generate or complete code. Free tier limited to three open-source repositories. Self-hosting is an Enterprise-only feature. Smaller feature set than full coding-assistant platforms.
Is Sourcery a good alternative to CodeRabbit?
Sourcery is built as a European alternative to CodeRabbit: London AI code reviewer that comments on every pull request and turns diffs into diagrams. It will not be a like-for-like feature match in every respect, so check the review above for where the two genuinely differ before switching.
How does Sourcery compare to other AI Coding Assistants tools?
Sourcery is one of several European AI Coding Assistants tools we cover. It is most often compared with CodeRabbit, GitHub Copilot code review, manual PR review.