Your AI code reviewer
that never sleeps
Octopus reviews every pull request with deep context awareness.
Catch bugs, enforce standards, and ship with confidence.
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Three steps to better reviews
Connect your repos, and Octopus starts reviewing automatically.
Connect GitHub
Install the Octopus GitHub App and select repositories to monitor.
AI Learns Your Code
Octopus indexes your codebase, understands patterns and architecture.
Reviews on Autopilot
Every new PR gets an instant, context-aware review automatically.
Install the CLI
Review PRs, chat with your codebase, and run AI agents from your terminal.
# Works on macOS & Linux. Installs everything.
curl -fsSL https://octopus-review.ai/install.sh | bashWorks on macOS, Windows & Linux. The one-liner installs Node.js and everything else for you.
The Review Engine
9 phases, fully automated. From webhook to PR comment in under 2 minutes.
Everything you need
to ship & review.
From RAG-powered chat to CLI tooling — everything happens through a single platform.
RAG Chat
Ask questions about your codebase. Vector search + reranking delivers precise, context-aware answers grounded in your actual code.
The middleware extracts the JWT from the Authorization header, validates it using jose.jwtVerify(), checks token expiry, and attaches the decoded user to context.
CLI Tool
Review PRs, query code, and manage repos from your terminal.
Reviewing 3 changed files with 847 context chunks...
Codebase Indexing
Chunks, embeds, and indexes your entire codebase for instant retrieval.
Knowledge Base
Feed your org's standards, docs, and conventions. Reviews get smarter over time.
Team Sharing
Organization-level config, shared knowledge, and team-wide review standards.
Analytics
Track review quality, token usage, cost per repo, and developer velocity.
Fully open source,
built in the open
100% open source under the MIT license. Inspect the code, self-host on your own infrastructure, or contribute.
Core codebase goes public on March 23, 2026 — 15:00 UTC
MIT Licensed
Use it however you want — personal, commercial, or enterprise.
Community Driven
PRs welcome. Report bugs, request features, or build integrations.
Self-Host Ready
Deploy on your own servers. Your code never leaves your infrastructure.
From the blog
Engineering insights and lessons from building Octopus.
Mythos Scores 93.9% on SWE-Bench. Your Reviewer Still Has No Context.
Claude Mythos hits 93.9% on SWE-bench, but benchmarks don't review real code. Context beats raw model power—BYOK lets you choose any model for your reviews.
Mythos Hunts Zero-Days. Who Reviews Your Code?
AI model finds thousands of zero-day exploits. While Anthropic restricts access, your code ships daily without deep review. Context-aware AI can help.
RAG Indexing vs Dynamic Discovery: Two Ways AI Understands Your Code
Discover how CodeRabbit's dynamic sandbox approach compares to RAG-based codebase indexing for AI code reviews. Learn the trade-offs & benefits.
Frequently asked questions
Quick answers to the most common questions about Octopus.
- What is Octopus?
- Octopus is an AI-powered code review tool that connects to GitHub and Bitbucket, indexes your codebase for deep context, and automatically reviews every pull request — posting findings as inline comments with severity levels.
- How does the automated review work?
- When a pull request is opened, Octopus fetches the diff, retrieves relevant context from your indexed codebase using vector search, and sends it to an LLM (Claude or OpenAI) for analysis. Findings are posted directly on the PR with severity ratings: Critical, Major, Minor, Suggestion, and Tip.
- Which programming languages are supported?
- Octopus is language-agnostic. It reviews any text-based code file — TypeScript, Python, Go, Rust, Java, C#, Ruby, PHP, Swift, Kotlin, and more. Since it uses LLMs for analysis, it understands the semantics and patterns of virtually any language.
- Is my source code safe?
- Yes. Your code is processed in-memory and never stored permanently. Only vector embeddings are persisted for search. You can also self-host Octopus on your own infrastructure so your code never leaves your servers.
- Does Octopus replace human reviewers?
- No. Octopus augments your team's review process. It catches bugs, security issues, and style inconsistencies so your human reviewers can focus on architecture, design decisions, and business logic.
- Is Octopus free to use?
- Yes. Octopus is open source under the MIT license and free to self-host. The cloud service includes free credits to get started, with a credit-based model for continued use. You can also bring your own API keys to use your existing AI provider billing.
Ready to transform your
code review workflow?
Open source, free forever. Set up in under 2 minutes.
No credit card required. Self-host or use our cloud.
Stay in the loop
Get notified about new features, updates, and the open source launch.