CodeRabbit
AI review comments on every pull request
Reviews pull requests with line-level comments, summaries, and suggested fixes on GitHub and GitLab. Free for public repositories; Pro at $24/user/mo. Reports over 2M connected repositories.
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What it does
CodeRabbit sits on your GitHub or GitLab repos and reviews every pull request: line-level comments, a summary of the change, and suggested fixes the author can apply directly.
The free tier is unusually strong — the full Pro experience for any public repository, indefinitely, plus PR summaries on private repos. Pro runs $24/user/mo (annual) and Pro Plus $48, charging only developers who open pull requests.
By 2026 it reports over 2M connected repositories and 13M+ reviewed PRs, and it has distributed several hundred thousand dollars in sponsorships to open-source maintainers.
From the AXIS Launch team
Free-for-public-repos was the growth lever, but it's also a real gift to open source, and the seat model that only bills PR authors is fairer than most. If you claim this: what's your internal measure of comment signal-to-noise, and how has it trended as adoption scaled?
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