1d agoAcademic Lianhui Qin says Gemini 3.1 Pro's spatial reasoning failed by placing a massive building inside a street during SimWorld's benchmarkSimWorld compared four coding agents generating Unreal Engine scenes.SentimentSentimentPos66.7%Neg33.3%Many users praised AI coding agents like Cursor and Codex for impressively building distinct Unreal 3D city scenes, while others objected to featuring retiring Gemini 2.5 as engagement bait.10 comments with sentiment. View comments.