The Chicago Tribune filed a lawsuit in opposition to AI search engine Perplexity on Thursday alleging copyright infringement. The go well with, seen by TechCrunch, was filed in a federal courtroom in New York.

The Tribune alleges that its attorneys contacted Perplexity in mid-October asking if the AI search engine was utilizing its content material, in keeping with the criticism. Perplexity’s attorneys replied it didn’t prepare fashions with the Tribune’s work, however that it “might obtain non-verbatim factual summaries,” the lawsuit claims.

The Tribune’s attorneys, nonetheless, argue that Perplexity is delivering Tribune content material verbatim.

Apparently, the newspaper’s attorneys are additionally calling out Perplexity’s Retrieval Augmented Technology (RAG) as a wrongdoer. RAG is a technique used to restrict hallucinations by having the mannequin solely use an correct or verified knowledge supply. The Tribune argues that Perplexity is utilizing the newspaper’s content material in its RAG techniques, scraped with out permission. Plus, it alleges the Perplexity’s Comet browser is bypassing the paper’s paywall to ship detailed summaries of these articles.

The Tribune is one among 17 information publications from MediaNews Group and Tribune Publishing that sued OpenAI and Microsoft over mannequin coaching materials in April. That go well with is ongoing. One other 9 from these publishers sued the mannequin maker and its cloud supplier in November, too.

Whereas creators have filed many lawsuits in opposition to mannequin makers over utilizing their work for mannequin coaching, we’ll need to see if the courts weigh in concerning the authorized liabilities of RAG as effectively.

Perplexity didn’t instantly reply to the Chicago Tribune’s story about its personal lawsuit, nor to TechCrunch’s request for remark. Perplexity is dealing with different such fits. Reddit filed one in October. Dow Jones is also suing. Final month, whereas Amazon didn’t sue, it did threaten to by sending a stop and desist letter over AI browser buying.