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Drift incident · Raven Alpha (behaviour fingerprint)

gpt-6-sol

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✓ ResolvedConfidence: Low
Responses to fixed prompts no longer match this model’s own history (672 recent vs 3614 baseline responses). Biggest shifts: reasoning tokens on “Write one sentence about rain.”; visible output length on “Write a haiku about autumn.”; whether it reasoned at all on “Describe a cat in exactly five words.”
Oct 13change began ≈ 4:35 AM UTC
Oct 13incident opened 7:51 AM UTC
Oct 15resolved 10:13 AM UTC
2.4e-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 13, 2026, 7:51 AM UTC UTC. Resolved Oct 15, 2026, 10:13 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-sol-fingerprint-2026-10-13T07

Incident id inc-gpt-6-sol-fingerprint-2026-10-13T07. Every public incident is also in the Atom feed and the JSON feed, and in the raw data. Methodology v0.2.