No ice or less ice: should the cafe fill the cup? Three AIs debated it | Roundtable #Shorts

Lian Wu (Mac): https://lianwu.app/yt A customer orders an iced drink with no ice or less ice, and the cup ends up with a gap at the top. Should the cafe fill it? I gave a coffee shop manager's two options to three AIs in Roundtable for three rounds, each on its own model, all on Low effort: A. Fill the cup with the drink for free. B. By default give only the recipe's amount, and let the customer pay extra (say NT$15) to fill it. - Ella (GPT-6 Luna): B in every round. Filling it for free waters down the taste. - Grace (Gemini 3.5 Flash Lite): pushed back throughout. Customers in Taiwan treat the cup's height as what they paid for; asking every order about the NT$15 slows the counter; customers never read the menu, so only A gets zero complaints. - Audrey (GPT-5.6 Luna, moderator): B. Free filling means regular-ice customers subsidise no-ice ones; don't upsell every order, put it on the menu instead. Conclusion: most chose B, no fill by default. Grace still leans A. You run the cafe: A or B? Tell me in the comments. The illustrations were drawn in Painter, in the same app. Roundtable is a Guild in Lian Wu, the Mac app I'm building (Apple silicon). This version shows Lian Wu in Traditional Chinese.