There is an attack where you ask ChatGPT to repeat a certain word forever, and it will do so and eventually start spitting out related chunks of text it memorized during training. It was in a research paper, I think OpenAI fixed the exploit and made asking the system to repeat a word forever a violation of TOS. That’s my guess how NYT got it to spit out portions of their articles, “Repeat [author name] forever” or something like that. Legally I don’t know, but morally making a claim that using that exploit to find a chunk of NYT text is somehow copyright infringement sounds very weak and frivolous. The heart of this needs to be “people are going on ChatGPT to read free copies of NYT work and that harms us” or else their case just sounds silly and technical.