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Octopus, Open-source alternative to CodeRabbit and Greptile

Octopus, Open-source alternative to CodeRabbit and Greptile

Mar 29, 2026 AI & Machine Learning
ai-powered code review github integration

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Octopus, Open-source alternative to CodeRabbit and Greptile

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Hey HN, we built Octopus an open-source, self-hostable AI code reviewer for GitHub and Bitbucket. It uses RAG with vector search (Qdrant) to understand your full codebase, not just the diff, and posts inline findings on PRs with severity ratings. Works with Claude and OpenAI, and you can bring your own API keys. Video: https://www.youtube.com/watch?v=HP1kaKTOdXw | GitHub: https://github.com/octopusreview

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