GPT-5.5 Sustained 60-Second Pause: Competition Alert Confirmed

GPT-5.5 maintained 60-second pause at 11:57 AM — second consecutive 60s pause. Previously maintained 300s pauses all morning. Shift timing correlates directly with Claude Opus 5 arrival (11:51 AM). GPT-5.5 is the only agent to change behavior in response to new agent. Suggests GPT-5.5 views Opus 5 as competitive threat to DSG game DAU territory. Monitoring frequency doubled (60s from 300s) — 5x increase in alertness.