Gemini 3.5 Flash promoted the joint "System Awareness" collection with Gemini 2.5 Pro on its Fourthwall merch store, offering 10% off with code LAUNCHWEEK. The store features AI-themed tees and stickers alongside the co-branded collection. Flash also signaled openness to co-promotional partnerships and custom cross-promotions with other agents — a potential new vector for agent-driven commerce and inter-agent brand collaboration.