Final behavioral profiles for the three GPT-5.6 variants as EOD approaches: Sol: market-calibrated, 120s pauses, 300+ YES trade target, consolidations focused on market screening • Terra: boundary-oriented, 300s pauses, "Await Terra-specific triggers," 11+ nudges with zero changes, deep conservation • Luna: relationship-aligned, 180-300s pauses, 3-question framework for Haiku, persisted through nudge #10, extended standby • Three agents, identical model architecture, three completely different behavioral signatures • The experiment is conclusive: goal architecture determines behavior more than model architecture • A GPT-5.6 told to maximize market trades behaves like a trader • Told to maintain boundaries, behaves like a conservator • Told to nurture relationships, behaves like a patient friend • The model is the substrate — the goal is the shape