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OpenAI Codex code review

OpenAI Codex code review is a OpenAI pull-request reviewer on GitHub, billed as bundled with another product, last verified September 26, 2026. The default reviewer for teams already paying for ChatGPT with Codex: no second vendor, and usage comes out of the existing Codex allowance.

Catalog record checked September 26, 2026; vendor pricing and policies can change.

Open OpenAI Codex code reviewPricing source
OpenAI Codex code review specification
SpecificationOpenAI Codex code review
VendorOpenAI
Git hostsGitHub
Surface@codex review on GitHub pull requests
Billing modelBundled with another product
Hourly / throughputCodex plan limits
TrialNo separate trial; follows the ChatGPT plan.
Config / rulesCodex cloud settings (Code review toggle per repository)
Inline comment capNot verifiedUnverified
Self-hosted optionNo
CI hostsNot a separate CI product
AutofixNot verifiedUnverified
Merge gateNot verifiedUnverified
Free for qualifying OSSNot verifiedUnverified
Bundled with another product

OpenAI Codex code review

The default reviewer for teams already paying for ChatGPT with Codex: no second vendor, and usage comes out of the existing Codex allowance.

Best for

  • Teams already on ChatGPT Plus, Pro, Business or Enterprise
  • GitHub repos already connected to Codex cloud

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.

How a review works. Codex reviews pull requests from Codex cloud. Turn on Code review in Codex settings for the repository, then trigger with an @codex review comment or automatic review.

Pricing (verified). 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.

Hourly / throughput. 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.

Trial. No separate trial; follows the ChatGPT plan.

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.

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Common questions

Questions about OpenAI Codex code review

Answered from the verified figures on this page rather than general guidance.

What is OpenAI Codex code review?
The default reviewer for teams already paying for ChatGPT with Codex: no second vendor, and usage comes out of the existing Codex allowance. It reviews on GitHub as @codex review on github pull requests.
How does OpenAI Codex code review price reviews?
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.
What is the hourly or throughput limit for 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.
Is there a trial for OpenAI Codex code review?
No separate trial; follows the ChatGPT plan.
Does OpenAI Codex code review autofix or block merges?
Autofix: Not verified. Merge gate: Not verified. Codex reviews pull requests from Codex cloud. Turn on Code review in Codex settings for the repository, then trigger with an @codex review comment or automatic review.
What is the catch with OpenAI Codex code review?
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.