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Code review

Author
Tom Rochette
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Created: / Updated: / Status: in progress / Readability: 3 / 2 minutes read (~341 words)
agents 48 code-review 39
Table of Contents

Where machines judge pull requests: the review bots, the open-source reviewers, and the one that pivoted into agent infrastructure.

  • CodeRabbit - the commercial anchor, $143M Series C at a $1.5B valuation, free forever on public repos, with a disclosed RCE history in its file.
  • Ellipsis - the 2024 review bot that pivoted to managed agent infrastructure in July 2026, review now one configurable use case.
  • git-lrc - Hexmos’s commit-time review hook that records review, vouch, or skip attestations in the git log, free with BYOK and $32 per 100k LOC paid, source-available rather than open source.
  • Graphite Diamond - the deprecated Diamond reviewer, now Graphite Agent inside Cursor since the December 2025 acquisition.
  • Greptile - AI code review running a swarm of agents over a graph index of your repositories, learned house rules included.
  • Kodus - the AGPL-3.0 open-source reviewer with BYOK and zero token markup, self-hosted or on Kodus Cloud.
  • OpenCodeReview - Alibaba’s hybrid reviewer where deterministic pipelines pick and rule-check what the LLM agent judges, precision over recall.
  • OpenQodex - Qodex.ai’s Apache-2.0 pre-push reviewer: pinned scanners plus a separate Claude Code or Codex process, free on your own agent subscription.
  • OpenReview - Vercel Labs’ dormant beta: a self-hosted @mention review bot on Vercel Sandbox, unlicensed and quiet since March 2026.
  • Qodo - the open-core reviewer, MIT PR-Agent you can self-host or paid Qodo Merge, both sides covered by Kudelski’s exploit research.
  • roborev - Wes McKinney’s MIT background review daemon that reviews every commit with your own coding agents and holds findings in a ledger until addressed.
  • Sourcery - the MIT-lineage static-analysis tool turned proprietary AI reviewer, free for open source and $12 for private repos.

Its members are compared on shared rows in the Code Review Feature Matrix.

Changes
#

  • 2026-08-24 - Added Greptile.
  • 2026-08-30 - Added CodeRabbit.
  • 2026-08-30 - Added Ellipsis.
  • 2026-08-30 - Added Graphite Diamond.
  • 2026-08-30 - Added Kodus.
  • 2026-08-30 - Added OpenCodeReview.
  • 2026-08-30 - Added Qodo.
  • 2026-08-30 - Added Sourcery.
  • 2026-10-06 - Added roborev.
  • 2026-10-10 - Added git-lrc.
  • 2026-10-11 - Added OpenQodex.
  • 2026-10-11 - Added OpenReview.