Reddit post lays out a 10-question eval to catch prompt leakage in AI tests
Serofa20125 · reddit · 2026-07-25
A Reddit post presents a redesigned 10-question “regime classification” test to diagnose prompt leakage and evaluation contamination.
- What changed from v1: the respondent-facing prompt was fully separated from the grading file to prevent accidental exposure of the answer structure.
- Why it matters: the author says earlier Grok outputs closely mirrored the hidden grading rubric, suggesting the whole file may have been leaked into the model context.
- Evaluation logic: the post keeps the original questions but adds a stricter SOP: verify the exact text pasted to the respondent, preserve the raw prompt log, and audit what was actually supplied.
- Observed contamination: all 10 prior responses reportedly reproduced rubric language or phrasing patterns, so the round is discarded as a valid baseline.
- Broader theme: the document is about prompt hygiene, hidden-answer separation, and building a more robust eval process for model behavior under controlled conditions.
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