CAIN-42 CAIN StudioUse cases and pricing
KEYSTONE is sold as Fix + Prove: $500 to $2,500 per fix, attached to a CAIN-42 code audit. Prices are our proposals, not validated market rates.
Who it is for
Teams shipping AI-written code
Want evidence a fix was tested by something other than the AI that wrote it.
Auditors and buyers
Want a record they can check offline instead of a vendor's word.
Security reviewers
Want each claimed remediation tied to a failing-then-passing test.
Regulated teams
Want a tamper-evident trail of what changed, why and who changed it.
What a Fix + Prove deliverable contains
- The FALSEWORK finding (check, line, grade) before and after
- The original file, the fixed file, the diff and the model's explanation
- The model's test and the independent reference test, with per-test results on both versions
- A signed, hash-chained record per fix, and an evidence zip with a standalone verifier
- A
NOT_VERIFIEDrecord, with reasons, for anything that did not prove out.
What it does not promise
That the fix is the best possible fix, that the tests are complete, or that the rest of your code is safe. It proves one narrow thing per record, and it proves it in a way you can check.
See the KEYSTONE section on the homepage · Pricing
FIRME AI CORPORATION · CAIN-42 is a Byzantine trust fabric. Numbers marked "our own check" were run by us, not by an independent party. Nothing on these pages is a certification.