CodeRabbit vs OpenAI Codex code review

CodeRabbit runs as pr reviews, cli, and ide on GitHub, GitLab, Bitbucket, Azure DevOps. OpenAI Codex code review runs as @codex review on github pull requests on GitHub.

CodeRabbit: Essentials (formerly Pro) $24/user/month billed annually ($30 month-to-month); Team (formerly Pro Plus) $48/user/month billed annually ($60 month-to-month); Advanced $72/user/month billed annually ($90 month-to-month) — adds blast-radius and architectural-impact analysis, security review on every PR, and continuous security monitoring; Enterprise custom. New organisations get a 14-day Advanced trial, no card. Seats are billed for developers who create PRs, or assigned manually. Public repositories are free. CodeRabbit Security Scan is usage-based; CodeRabbit Agent is $0.40 per agent minute; over-limit reviews can continue at $0.25 per reviewed file. OpenAI Codex code review: Bundled with ChatGPT plans from Plus ($20/mo) upward — Plus lists cloud-based integrations such as automatic code review, and Pro and higher include everything in Plus. The Free and Go plans do not list it. Review usage draws on the plan's Codex usage limits or credits. Signing in to Codex with an API key does not unlock it.

CodeRabbit: Rolling per-developer hour, not a workspace bucket. Pricing page (newer): Essentials 5/hour, Team 8/hour, Advanced 10/hour, Enterprise 12/hour. The docs plans page still uses the old names — Pro 5/hour, Pro+ 10/hour, Enterprise 12/hour — so confirm Team's rate with CodeRabbit before quoting it. Free has no PR reviews (PR summaries only) and allows 3 IDE and 3 CLI reviews per hour. The 14-day trial allows 10 PR reviews/hour and 150 files per review. OSS public repos 1–10/hour by popularity. Incremental reviews after pushes count. Files per review (after path filters): Free 150, Pro and above 300. Fair-usage can slow a developer at the 95th percentile of recent 7-day usage. A usage-based add-on can continue eligible over-limit reviews. @coderabbitai rate limit shows remaining capacity. OpenAI Codex code review: No separate hourly PR cap. Reviews run through Codex cloud and count against the same 5-hour and weekly Codex limits (or credits) as other Codex work; code-review usage applies only when Codex runs reviews through GitHub.

CodeRabbit: Yes. OpenAI Codex code review: Not verified. Autofix is still a suggestion until your CI and humans accept it.

CodeRabbit: Yes. OpenAI Codex code review: Not verified. A missing verification means we did not treat marketing copy as a merge-gate claim.

Choose CodeRabbit if this matches: Teams on mixed git hosts. Orgs that want a dedicated reviewer with linters and issue trackers attached. Open-source maintainers who want free public-repo reviews. Choose OpenAI Codex code review if this matches: Teams already on ChatGPT Plus, Pro, Business or Enterprise. GitHub repos already connected to Codex cloud. CodeRabbit watch-out: Per-seat pricing scales with PR authors, not with workspace. Essentials (formerly Pro) caps reviews at 5 per developer per hour. Custom pre-merge checks are Pro+/Enterprise (now Team and above), not Essentials. Pre-merge checks default to warning (non-blocking); blocking merges requires error + Request Changes Workflow. Self-hosted/on-prem is Enterprise, not Pro. Security Scan and CodeRabbit Agent ($0.40/agent minute) are billed separately. The docs and the pricing page disagree on some hourly limits — confirm with the vendor. Confirm monthly vs annual toggle before quoting $24. Raised a $143M Series C at a $1.5B valuation on 2026-08-12 (Reuters) and is expanding into AI software governance; Kudelski Security has disclosed an exploit chain (RCE/secrets) against CodeRabbit in 2026 — confirm remediation status before granting broad repo access. OpenAI Codex code review watch-out: Shares Codex limits with the rest of your Codex work, so heavy review can starve agent tasks. API-key Codex has no cloud features, including GitHub review. GitHub only.