Install the AI code reviewer
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Learn more about cubic and how it works.
Independent benchmark: cubic is the top-ranked AI code
reviewer on
Code Review Bench.
Key features
- Spots bugs and improvements: Comments on bugs and improvements in pull requests
- Auto-resolve threads: Enable automatic thread resolution to close findings when the issue is fixed
- Learns from you: Improves over time by learning from your feedback
- PR summaries: Generates PR descriptions based on code changes
- Custom agents: Enforce your team’s coding standards
- Coding agents: Generate fixes when requested, using your configured provider
Getting started
1
Install cubic and start your free trial
Sign up at cubic.dev/sign-up. This will guide you through
installing the cubic GitHub App on the repositories you want to analyze.
2
Open a new pull request
Once installed, cubic automatically reviews new pull requests. See example reviews for PostHog,
n8n, and more.
3
Learn the workflow
Follow the Developer Quickstart to run your first review and respond to
findings.
Existing pull requests: Reviews for new PRs start automatically. To review a PR that was
opened before you installed the app, comment:
@cubic-dev-ai review this PR.Security and privacy
- No third-party model training: Our AI providers are contractually prevented from using your code to train their models.
- SOC 2 compliant: We are SOC 2 Type I compliant.
Frequently asked questions
Do you support Gitlab or Bitbucket?
Do you support Gitlab or Bitbucket?
Not yet. We currently only support GitHub.
What languages do you support?
What languages do you support?
cubic is language-agnostic and supports all popular programming languages, including JavaScript,
TypeScript, Python, Go, Ruby, PHP, Java, C#, C/C++, Rust, Kotlin, and Swift.
What AI models do you use?
What AI models do you use?
cubic uses multiple model providers, with different models for different review tasks.
Will cubic also check large PRs?
Will cubic also check large PRs?
If a pull request contains more than 200 eligible files, cubic selects up to 200 of the
highest-priority eligible files for this review.
Does cubic have up-to-date knowledge of libraries?
Does cubic have up-to-date knowledge of libraries?
Yes. cubic has access to library and framework documentation to check APIs and deprecations
during reviews.
Next steps
- Developer Quickstart: Hands-on tutorial for interacting with AI reviews.
- Connect cubic to your IDE: Install cubic in Cursor, Claude Code, VS Code, Codex, Gemini CLI, or another coding tool.
- Local CLI review: Add the advanced local-review loop before you push.
- Key features: Discover what the AI reviewer can do.
- Custom review rules: Tailor the AI to your team’s coding standards.