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BugBot vs Hyrax

BugBot flags bugs in PRs.
Hyrax fixes them.

BugBot is Cursor's AI PR reviewer that flags likely bugs and posts comments on pull requests. It reviews; the developer fixes. Hyrax audits the whole codebase, fixes issues, and ships PRs verified against the test suite.

Start freeSee how it works
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 BugBot handoff
Runs on AWS Bedrock
Code never trained on
13-step verification
Opens PRs, closes tickets
You approve every merge

The difference

Same surface area. Hyrax does the work.

BugBot
  • AI PR reviewer that flags likely bugs
  • Posts comments — developer implements the fix
  • PR-scoped, reacts to pull request events
  • Tied to the Cursor ecosystem and its pricing
Hyrax
  • Audits the entire codebase across six categories
  • 13-step verification with baseline tests before every fix
  • Opens a [Hyrax] PR and closes the ticket — you approve the merge
  • Usage-based pricing, compute credits included, no per-seat fees

Feature comparison

Everything BugBot does — plus the execution it doesn't.

Capability
BugBot
Hyrax
DetectionPR bug review comments
Codebase-wide audit
SAST-grade source scanning
ExecutionAutonomous fix execution
CI validation before merge
Opens PR and closes ticket
ContinuousRuns outside PR events
PricingCompute credits included
Yes
Partial
No

The edge BugBot misses

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

BugBot 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
13PR opened

Pricing

Transparent pricing. Compute included.

BugBot
Usage-based (~$1–1.50/PR)

No per-seat fee. Offered through Cursor as a PR review add-on at roughly $1–1.50 per review, billed against an included usage pool or on-demand spend.

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 BugBot.

BugBot reviews a pull request and comments on likely bugs; a developer then fixes them. Hyrax audits the whole codebase, makes the fix itself, runs the test suite and build, and opens a [Hyrax] PR you approve.

BugBot and CodeRabbit are both AI PR reviewers that post comments. Hyrax is different in kind: it executes verified fixes and runs continuously across every repo, not only on PR events.

Yes. Keep BugBot for in-PR bug flags if the team likes it. Hyrax runs codebase-wide audits and ships verified fixes — different jobs that coexist.

Stop reviewing. Start shipping.

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

Start free
No credit card to start
First audit in under 10 minutes
Code is never trained on
You approve every merge