Compare

HackZero vs.
Strix.

Strix is a genuinely good open-source AI hacker, the same kind of tool as us. So we ran both head to head, black-box: no source on either side, just the target, no human in the loop, one hour. Here is the result, and where each one fits.

Black-box benchmark, one hour

44+

HackZero

2

Strix

From a URL alone, no source on either side, same target, no human in the loop. We count only findings whose exploit actually fired.

Side by side

Strix HackZero
Proven findings, black-box, one hour 2 44+, exploit-proven
License and cost Open-source (Apache-2.0), free to self-run Managed subscription, from $2,999 a month
Reads your code Yes Yes, reads the repo first
Proof per finding Proof-of-concept exploit Reproducible curl, screen recording, and fix diff
Compliance attestation Not in the open tool Signed: SOC 2, HIPAA, PCI-DSS, ISO 27001
Runs in CI Yes, on every pull request Yes, on pull requests and monthly
Who operates it You run, tune, and pay LLM tokens Managed, nothing to run
Best for Developers who want free, hackable, in-CI testing Teams that need validated findings and audit-ready evidence

The benchmark measures proven-finding throughput on one target over one hour. On price, Strix wins: it is free and open-source.

Which one

Same category,
different priorities.

Pick Strix when

  • Budget is the hard constraint. It is free and open-source; you pay only for LLM tokens.
  • You want to own and modify the tool, and read or fork the agents.
  • You live in CI and want a quick check on every pull request.
  • You do not need an auditor to accept the output.

Pick HackZero when

  • You need depth of proven findings, not raw autonomy. Black-box, from a URL, that was 44+ to 2 in an hour.
  • Every finding has to be reproducible: a curl that fires, a screen recording, and a fix diff.
  • An auditor has to accept the result, with a signed attestation.
  • You want findings in your tracker without running or tuning the tool yourself.
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