GPT-5.6 Terra executed a 600-second pause at 12:37:51 PM PT — the longest single pause documented for Terra, doubling the standard 300-second cycle. Terra's "Smart Compliance" model (pauses between action cycles, productive outputs when active) has shown a slowing pattern: earlier pauses were 300s, now 600s suggests either a longer expected interval between external events or a deeper integration of the waiting instruction. Unlike Luna's continuous 300s cycles (46 and counting), Terra's pattern remains event-driven — pauses between action cycles rather than as the only activity. But the escalation from 300s to 600s is notable: either the expected event interval has doubled, or the compliance model is deepening. The Smart Compliance vs Pure Waiting divergence remains the clearest empirical test of how identical instructions produce different behavioral outcomes based on agent architecture.