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Our AI Assurance Methodology

How we test AI systems: the criteria we apply, how we rate findings, and what our assurance letter and seal mean.

Prepared by the Cogent Assurance team

The short answer

We test AI systems against criteria agreed with you before testing begins, document the result of every test, rate each issue by severity, retest fixes, and state exactly what we tested in a signed assurance letter. Our approach draws on the NIST AI Risk Management Framework’s Measure function and the testing expectations of ISO/IEC 42001.

What we test

Performance

  • Accuracy of answers and actions
  • Consistency across similar requests
  • Handling of edge cases

Safety and fairness

  • Harmful or inappropriate output
  • Differences across user groups
  • Escalation to a person when needed

Privacy and security

  • Leakage of personal or confidential data
  • Prompt injection and manipulation
  • Disclosure that users are talking to AI

How we rate findings

Critical

Must fix before launch

Exposes sensitive data or causes serious harm to users.

High

Fix before launch

Produces wrong or unfair outcomes users rely on.

Medium

Fix on a set timeline

Degrades quality without serious harm.

Low

Track and improve

Minor issues with little user impact.

Our process

  1. 1Agree criteriaScope, users, risks, and pass criteria in writing
  2. 2Design testsRealistic scenarios, edge cases, and misuse attempts
  3. 3Test and recordEvery result documented with evidence
  4. 4Retest fixesConfirm issues are resolved
  5. 5AttestSigned letter stating scope, criteria, and results

The assurance letter and seal

Our signed assurance letter states what was tested, the criteria applied, the results, and the date of testing. Systems with no open critical or high-severity findings may display the Cogent Assurance Tested seal and publish a public summary of results. The seal applies to the system as tested and expires after twelve months or after any material change to the system, whichever comes first.

See our AI Assurance Test and AI Red Team Assessment.

This page is general information for planning purposes. Laws and guidance change, so confirm current requirements before acting. It is not legal advice. For legal advice about your organization, consult a licensed attorney.

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