Comment by anonymous908213

This is by no means unique to DeepSeek, and that it happened with specifically DeepSeek seems to be luck of the draw for you (in this case it's entirely possible the band's limited press coverage was not in DeepSeek's training data). You can easily run into it from trying to use ChatGPT as a Google search too. A couple of weeks ago I posed the question "Do any esoteric programming languages with X and Y traits exist?" and it generated three fictional languages while asserting they were real. Further prompting led it to generate great detail about their various features and tradeoffs, as well as making up the people responsible for creating the language and other aspects of the fictional languages' history.