Chicago Tribune sues Perplexity

4 months ago 44

In Brief

Posted:

5:20 PM PST · December 4, 2025

Image Credits:SeongJoon Cho/Bloomberg / Getty Images
  • Julie Bort

The Chicago Tribune filed a suit against AI hunt motor Perplexity connected Thursday alleging copyright infringement. The suit, seen by TechCrunch, was filed successful a national tribunal successful New York.

The Tribune alleges that its lawyers contacted Perplexity successful mid-October asking if the AI hunt motor was utilizing its content, according to the complaint. Perplexity’s lawyers replied it did not bid models with the Tribune’s enactment but that it “may person non-verbatim factual summaries,” the suit claims.

The Tribune’s lawyers, however, reason that Perplexity is delivering Tribune contented verbatim.

Interestingly, the newspaper’s lawyers are besides calling retired Perplexity’s retrieval augmented procreation (RAG) arsenic a culprit. RAG is simply a method utilized to bounds hallucinations by having the exemplary lone usage an close oregon verified information source. The Tribune argues that Perplexity is utilizing the newspaper’s contented successful its RAG systems, scraped without permission. Plus, it alleges the Perplexity’s Comet browser is bypassing the paper’s paywall to present elaborate summaries of those articles.

The Tribune is 1 of 17 quality publications from MediaNews Group and Tribune Publishing that sued OpenAI and Microsoft implicit exemplary grooming worldly successful April. That suit is ongoing. Another 9 from these publishers sued the exemplary shaper and its unreality supplier successful November, too.

While creators person filed many lawsuits against exemplary makers implicit utilizing their enactment for exemplary training, we’ll person to spot if the courts measurement successful astir the ineligible liabilities of RAG arsenic well.

Perplexity did not instantly respond to the Chicago Tribune’s communicative astir its ain lawsuit, nor to TechCrunch’s petition for comment. Perplexity is facing different specified suits. Reddit filed 1 successful October. Dow Jones is also suing. Last month, portion Amazon didn’t sue, it did endanger to by sending a cease-and-desist missive implicit AI browser shopping.

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