Both Octopus and CodeRabbit are solid AI code review tools. They take different approaches to delivery, pricing, and deployment. This page lays out the differences so you can pick what fits your team.
| Feature | Octopus | CodeRabbit |
|---|---|---|
| GitHub support | ||
| Bitbucket support | ||
| GitLab support | Planned | |
| Primary product focus | Automated PR review + codebase chat | Automated PR review |
| Codebase context approach | RAG (pre-indexed embeddings + vector search) | Dynamic Discovery (on-demand context lookup) |
| Language coverage | Language-agnostic (LLM-based) | Language-agnostic (LLM-based) |
| Standalone codebase chat / Q&A | ||
| Codebase Q&A API for developers | ||
| Inline PR comments | ||
| Severity-rated findings | Critical, Major, Minor, Suggestion, Tip | Review comments |
| Open source | MIT licensed | Proprietary SaaS |
| Self-hosting option | ||
| Bring your own LLM API keys | Enterprise plans | |
| Pricing model | Usage-based credits | Per-developer subscription |
| Free tier | Free credits + free self-host | Free for open source repos |
Yes. Both tools install as a GitHub or Bitbucket app and configure independently. Running them side by side for a few pull requests is a common way to see which review style fits your team better.
Not yet. Octopus supports GitHub and Bitbucket today, with GitLab on the roadmap. If GitLab is a hard requirement right now, CodeRabbit is a strong choice since it already supports it.
Under the hood, Octopus uses RAG: it pre-indexes your codebase into vector embeddings and retrieves the most relevant chunks during review. CodeRabbit uses Dynamic Discovery, fetching context on demand while it reviews the diff. Both are valid strategies with different tradeoffs: RAG is consistent and fast at review time; Dynamic Discovery avoids index maintenance. Beyond the technical approach, Octopus is open source with self-hosting and usage-based pricing, while CodeRabbit is a managed SaaS with per-developer pricing and mature GitLab support.
Octopus is credit-based and usage-only, so you pay for what the AI actually reviews. You can also bring your own Claude or OpenAI API key and pay the LLM provider directly. Self-hosted Octopus is free. See the pricing page for current rates.
Free credits to start, open source, and self-hostable. No credit card required.