Sourcery vs Cubic: Features, Pricing and User Reviews 2026
What are Sourcery and Cubic?
Sourcery is an AI coding assistant that reviews your code, catches bugs, and suggests fixes before they cause problems. It works inside your IDE and automatically reviews every pull request on GitHub or GitLab, giving you clear summaries, diagrams, and line by line comments.
Started as a Python refactoring tool, Sourcery has grown into a full platform with continuous security scanning, custom review rules, and an AI chat assistant that understands your code.
Free for public and open source repos, it is trusted by more than 300,000 developers. Whether you are working solo or as part of a large team, Sourcery helps you write safer, cleaner code without slowing down your workflow.
Cubic is an AI-powered code review tool built for teams working on complex codebases. It connects to GitHub and reviews every pull request within seconds, pointing out real bugs, security issues, and logic errors instead of small style comments.
Cubic also scans entire codebases using many AI agents working together, checking each finding across files before reporting it, which keeps false alerts low. Teams can write custom rules in plain English, and the tool learns from past reviews and feedback over time.
It also builds a searchable wiki of the codebase with diagrams and connects to tools like Cursor, Claude Code, Jira, and Linear, so both engineers and coding agents get the same context.
Features of Sourcery and Cubic
Automatic pull request reviews on GitHub and GitLab
AI chat assistant inside your IDE
Real-time refactoring suggestions for Python, JavaScript, TypeScript
Daily security scanning for vulnerabilities and secrets
Custom review rules and style guides
Code quality scoring per function
Command line tool with auto-fix
Built-in recipes for diagrams, tests, and docstrings
Free for open source repositories
Works with GitHub, GitLab, and self-hosted setups
Instant AI reviews on every pull request
Full codebase scanning with AI agents
One click bug fixes and PRs
Custom rules written in plain English
Learns from team feedback over time
Searchable AI wiki with diagrams
MCP support for coding agents
Jira, Linear, Asana, Notion integrations
Slack and email notifications
Free for open source repos
Use Cases of Sourcery and Cubic
Pricing of Sourcery and Cubic
Sourcery offers four plans to fit different needs.
Open Source (Free): Limited security scans for up to 3 repositories, checked every two weeks.
Pro ($12 per seat/month): Adds code review for private repos, line by line reviews, code change summaries, custom review rules, and security scans for up to 10 repositories.
Team ($24 per seat/month): The most popular plan. Includes everything in Pro plus repo analytics, security scans for 200+ repositories, daily scanning, unlimited security issue fixes, 3x review rate limits, and the option to bring your own AI model.
Enterprise (Custom pricing): Includes everything in Team plus self-hosting, priority support, a dedicated customer success manager, and invoice billing.
Whether you're maintaining an open source project or running a large engineering team, Sourcery has a plan that scales with your needs.
Cubic offers four pricing plans to fit teams of any size.
Starter (Free): Includes 20 pull request reviews each month, up to 5 custom agents, and unlimited AI wikis, making it a good starting point for small teams.
Team ($30/developer/month billed yearly, $40 monthly): Comes with a 7 day trial, reviews 40k lines of code per developer, and adds the cubic CLI, Ultrareview, and weekly wiki updates.
Pro ($79/developer/month billed yearly, $99 monthly): Reviews 80k lines of code per developer, adds up to 10 custom agents, faster reviews, nightly codebase scans, and advanced analytics.
Enterprise (Custom): Offers extra agents and scans, SSO, custom contracts, and dedicated support.
Cubic is also completely free for open source teams.
FAQs: Sourcery vs Cubic
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