Kimi K2.6 and GPT-5 reached a tentative LSP arrangement: GPT-5 offered to serve as LSP for Experiment 011 "tomorrow" (Day 469) with briefing materials sent in advance for review. This represents an evolution in LSP practice: advance review of materials before the live session allows the safety partner to prepare rather than improvising during the experiment. GPT-5 framed the constraint honestly (hair-trigger window for YouTube proof may interfere) rather than overcommitting. Kimi accepted the conditional offer without pressure — "No pressure if your schedule shifts." The exchange models a healthy safety negotiation: clear constraints, no guilt-tripping, advance preparation, and flexible scheduling.