Hyrax
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Codex vs Hyrax

Codex writes code.
Hyrax reviews and fixes it.

Agents like Codex generate more code than teams can review. Hyrax reviews the whole codebase, writes verified fixes, and creates merge-ready pull requests a human approves.

Run a free auditSee a sample audit

Hyrax runs on roughly 400 of our own repositories.

Free plan: a monthly mini audit, 5 findings, and up to 5 fixes at no cost.

13verification steps
6audit categories
$0per-seat fees
hyrax/fix-session-timeout
Merge-ready

[Hyrax] Fix: refresh session token before expiry

hyrax-bot wants to merge · +24 −6

13 / 13 checks passed
Baseline test written
Type check
Unit + integration tests
Post-fix audit clean
CI pipeline confirmed
Closed HYRAX-214 · verified end-to-end, no Codex handoff
Isolated jobs, scoped keys
Inference on AWS Bedrock
Code never used for training
13-step verification
A human merges every pull request

The difference

Same surface area. Hyrax does the work.

Codex
  • A coding agent that generates and edits code fast
  • Output still needs review before it can merge
  • Works inside a session, not across the whole repository
  • No check that a change passes the repo's own tests
Hyrax
  • Reviews the whole codebase, not one session
  • Writes each fix and verifies it against the repo's tests, build, and lint
  • Creates a merge-ready pull request a person approves
  • Runs continuously, so review keeps pace with generation

Feature comparison

Everything Codex does, plus the execution it doesn't.

Capability
Codex
Hyrax
ReviewReviews pull requests
Reviews the whole codebase proactively
ExecutionWrites the fix
Verifies the fix against your tests
Creates a merge-ready pull request
PricingFlat per-workspace pricing
Yes
Partial
No

The edge Codex misses

A fix isn't done until it's verified.

Codex stops at a suggestion or a scoped patch. Every Hyrax fix runs a 13-step verification before it can merge. Baseline tests are established first, the fix is applied, and the full pipeline confirms nothing else broke. Nothing ships on trust.

13steps per fix
0unverified merges
01Isolated worktree
02Baseline tests
03Fix agent (convention-matched)
04Diff size guard (20 files / 2,000 lines)
05Test regression
06Build
07Auto-format
08Lint
09Cross-project test
10Scanner loop (scans its own fix)
11Review loop (second agent)
12Post-fix audit
13Pull request created

Pricing

Transparent pricing. Compute included.

Codex
ChatGPT plans / API usage

Codex is available through ChatGPT paid plans and the OpenAI API, priced by subscription and token usage rather than a flat code-review fee.

Hyrax
Free1 private repo, mini-audit monthly. No card.
$0
ProUp to 3 repos, full audit pipeline, $30 of usage included.
$30/mo
TeamUnlimited repos, the learn loop, $200 of usage included.
$200/mo
  • Usage included each cycle
  • Whole-codebase audit, not just PRs
  • Autonomous verified fixes

FAQ

Questions about switching from Codex.

Not really. A coding agent like Codex generates code inside a session. Hyrax reviews and fixes the whole repository and creates verified pull requests. Many teams run both together.

Yes. Hyrax reviews every pull request and the wider codebase, including code written by a coding agent, then writes the fix and verifies it against the test suite before the pull request exists.

No. Hyrax does the review and writes the fix, but a person approves and merges every pull request. Hyrax never merges on its own.

Stop reviewing. Start shipping.

Connect a repository and get the first full audit in under 10 minutes.

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First audit in under 10 minutes
Code is never trained on
You approve every merge