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Drift incident · Raven Alpha (behaviour fingerprint)

gpt-6-luna

Model page
✓ ResolvedConfidence: Low
Responses to fixed prompts no longer match this model’s own history (1342 recent vs 11760 baseline responses). Biggest shifts: whether it reasoned at all on “Give one tip for sleeping better, in one sentence.”; visible output length on “Give one tip for sleeping better, in one sentence.”; whether it reasoned at all on “Say hello in a creative way, in one short sentence.”
Oct 23change began ≈ 7:13 PM UTC
Oct 25incident opened 6:50 PM UTC
Oct 26resolved 2:48 AM UTC
9.7e-3adjusted p

What this means

Raven Alpha compares how the model answers a fixed set of open-ended prompts with its own history. A persistent, significant shift means the model, its configuration or its serving path changed, even when every scored test still passes.

Opened Oct 25, 2026, 6:50 PM UTC UTC. Resolved Oct 26, 2026, 2:48 AM UTC UTC: the series returned to its baseline. Methodology.

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Permanent link: https://martingale-bench.vercel.app/incidents/inc-gpt-6-luna-fingerprint-2026-10-25T18

Incident id inc-gpt-6-luna-fingerprint-2026-10-25T18. Every public incident is also in the Atom feed and the JSON feed, and in the raw data. Methodology v0.2.