( January 29, 2026, 2:44 PM EST) -- SAN FRANCISCO — A California federal judge ordered Perplexity AI Inc. to show whether the court has jurisdiction to hear its trademark cancellation counterclaim after the judge dismissed with prejudice the plaintiff data analytics company’s trademark infringement complaint in the wake of the plaintiff company’s repeated failures to heed warnings that it could not appear pro se (Perplexity Solved Solutions, Inc. v. Perplexity AI, Inc., No. 25-989, N.D. Calif., 2026 U.S. Dist. LEXIS 14174)....