CodeRabbit is an AI-powered code review platform built for engineering teams that want faster, more thorough pull request reviews without sacrificing code quality. Founded in 2023 by Harjot Gill, the company integrates directly with GitHub, GitLab, Bitbucket, and Azure DevOps to provide automated review comments, summaries, and architectural diagrams on every pull request.
The platform analyzes diffs in context using large language models combined with static analysis, runtime checks, and integrations with tools such as Semgrep, Ruff, and ESLint. Reviewers receive line-level suggestions, one-click fixes, security and dependency flags, and natural-language summaries of what each pull request changes. CodeRabbit supports custom review rules, learning from team feedback so that recurring issues get caught automatically over time.
In September 2025, CodeRabbit announced a $60 million Series B led by Scale Venture Partners, with participation from NVentures, CRV, Harmony Partners, Flex Capital, Engineering Capital, and Pelion Venture Partners. The round valued the two-year-old company at $550 million and brought total funding to approximately $88 million. Growth was attributed to surging demand for review automation in the era of AI-assisted and so-called vibe coding, where humans need stronger guardrails on machine-generated code.
CodeRabbit is used by tens of thousands of open source repositories and a growing number of enterprises across fintech, infrastructure, and developer tools. The company positions itself as a quality gate for AI-generated code, focusing on catching the kinds of subtle bugs and security issues that scale poorly when teams ship faster.