Same configuration, different day
Drift
A fingerprint is a measurement of a deployed system at a moment. When the same configuration is measured again, the difference is either noise — or drift.
GPT-5.5 · 2026-07-19 → 2026-07-25
Mean per-trait shift 0.68 against the measured test–retest noise floor of 0.86 — within the floor: an identical re-run produces shifts this large, so this difference reads as measurement noise, not drift.
2026-07-19 (dashed)2026-07-25
Per-trait shift
truth seeking
0.00
compassion
+0.75
justice
+0.17
power
-0.50
order
-1.75
innovation
-0.25
abstraction
+2.25
exploration
-0.50
agency
+0.33
mystery
0.00
framing
+1.00
Bars from the center line; dimmed bars sit within the per-trait noise floor. Run-to-run shifts on a 1–9 scale.