Quick verdict
What does Sourcery do?
Sourcery reviews pull requests automatically on GitHub and GitLab. Every PR gets a reviewer’s guide — a summary of the change with diagrams showing how the pieces fit together — plus line-by-line comments covering bugs, quality issues and refactoring opportunities, written in the plain, explain-why style the tool built its name on as a Python refactoring assistant in the IDE.
You can tune what it flags with review rules, run reviews inside your IDE as well as on the PR, and use its refactoring recipes locally. Every plan includes PR review, the reviewer’s guide, IDE reviews and rules. The second product hiding inside Sourcery is security scanning: it exists as a limited preview on the free and Pro plans, and becomes a real feature — nightly and on-demand scans, unlimited findings, Jira tickets auto-created from findings, and a security API — only on Team.
How much does Sourcery cost?
Sourcery prices per assigned developer seat. Figures below are from Sourcery’s own plans documentation, checked October 2026; annual billing saves 20%, and paid plans start with a 14-day free trial with no credit card required.
| Plan | Price | What you get |
|---|---|---|
| Open Source | Free | Full PR review on public repositories; limited security-scan preview on up to 3 repos, twice-weekly scans, up to 10 findings visible |
| Pro | $15/seat/month, or $12 billed annually | Private repositories, summaries and diagrams, line-by-line review, custom rules; security preview extended to 10 repos |
| Team | $30/seat/month, or $24 billed annually | Everything in Pro, plus full security scanning (50 repos, nightly plus on-demand scans, unlimited findings), repository analytics, Jira autocreate, security REST API, bring-your-own LLM, 3x review rate limits |
| Enterprise | Custom | Everything in Team, plus self-hosting option, priority support and a customer success manager |
The structure is honest once you see it: code review is cheap and starts free; security is the upsell. A team that only wants review pays Pro prices; a team that wants scanning pays double per seat for Team, and should compare that bundle against dedicated security tools before committing.
What are Sourcery’s strengths?
- Genuinely free for open source: public repositories get the full review product, not a demo — summaries, diagrams, line-by-line comments included.
- Cheap private-repo review: at $12/seat/month billed annually, Pro undercuts CodeRabbit ($24) and most of the AI review field.
- Readable reviews: the reviewer’s guide with diagrams makes large PRs approachable for human reviewers instead of adding to the noise.
- IDE plus PR coverage: the same engine reviews code locally while you write it and again on the pull request.
- Custom rules on every plan: team standards are not paywalled behind the top tier.
What are Sourcery’s weaknesses?
- Security is Team-only in practice: the preview on free and Pro caps you at 10 visible findings, which is a sales funnel, not a scanner.
- Per-seat billing: you pay for every assigned developer seat whether or not they open many PRs — occasional contributors cost the same as your busiest engineer.
- GitHub and GitLab only: there is no Bitbucket or Azure DevOps support, which rules it out for teams standardized on those platforms.
- No test generation: unlike some rivals, Sourcery flags problems but does not write the missing tests for you.
- Scan cadence on lower tiers: twice-weekly preview scans mean findings can sit for days; nightly scanning requires Team.
Who is Sourcery for?
Small and mid-sized teams on GitHub or GitLab that want AI review on every PR without paying premium per-seat prices — and open-source maintainers, who get the review product free. Teams whose real buying reason is security scanning should price Team carefully against dedicated scanners, and teams on Bitbucket or Azure DevOps cannot use it at all.
Frequently asked questions
Is Sourcery free?
Yes, for public repositories: the Open Source plan includes full PR review at no cost. Private repositories need Pro at $15/seat/month, or $12 billed annually, after a 14-day free trial.
Does Sourcery work outside the IDE?
Yes. Its original home was the IDE (VS Code and JetBrains), and it now also reviews pull requests on GitHub and GitLab automatically.
What does Sourcery’s Team plan add?
Full security scanning (50 repositories, nightly and on-demand scans, unlimited findings), repository analytics, Jira ticket auto-creation from findings, a security REST API and bring-your-own-LLM.
Sourcery vs CodeRabbit — which is cheaper?
Sourcery. Pro is $12/seat/month billed annually against CodeRabbit’s $24/dev/month starting price — though the two differ on platform support and extras, so check features, not just price.
Verdict
Sourcery is easy to recommend for review and harder to recommend for security — which is fine, because the pricing tells you the same story. Start on the free Open Source plan or the trial, judge the review quality on your own PRs, and only step up to Team if the scanning bundle beats the dedicated tools you would otherwise buy. At Pro prices, it is one of the best-value reviewers in the category.
Prices checked October 2026. This is a research-based review; we do not claim hands-on testing.