Note that this is not really a decision on the merits of the underlying claims in the lawsuit. Perplexity moved to dismiss "pursuant to Federal Rules of Civil Procedure 12(b)(2) and 12(b)(3)" alleging lack of personal jurisdiction and improper venue (i.e., claims that the United States District Court for the Southern District of New York can't assert jurisdiction over the defendants and that that court is the wrong place to sue them).