Octopus, Open-source alternative to CodeRabbit and Greptile

Name: Octopus, Open-source alternative to CodeRabbit and Greptile
Availability: InStock
Author: redoh

by redoh·Mar 28, 2026·3 points·0 comments

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AI Analysis

●MidShip It

Yet another AI code reviewer, but self-hostable with Qdrant RAG for context.

Strengths

•Self-hostable with Qdrant RAG means codebase never leaves your infrastructure
•CLI tool included for terminal-based PR reviews and codebase queries
•Organization-level config and shared knowledge base for team review standards

Weaknesses

•AI code review space saturated with CodeRabbit, Greptile, and Copilot already
•Timeline confusion: claims 100% open source but core codebase releases March 2026

Post Description

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. Demo: https://www.youtube.com/watch?v=HP1kaKTOdXw | GitHub: https://github.com/octopusreview