Perplexity AI Loses Bid for Dow Jones IP Investigation Files (1)

Perplexity AI Inc.'s accusations that the publisher of The Wall Street Journal used burner accounts to make its answer engine generate copyright-infringing outputs weren’t enough to access their pre-lawsuit investigation materials, a judge ruled.

“I am someone who has pretty firm views about the attorney-client privilege,” Judge Katherine Polk Failla said at a hearing Friday, and the publishers didn’t waive that privilege by including examples of prompts that caused Perplexity’s engine to spew verbatim articles in their infringement complaint.

She denied Perplexity’s motion to compel News Corp. units Dow Jones & Co. and NYP Holdings Inc. to turn over information ...