Chicago Tribune Sues Perplexity AI for Copyright Infringement Over Unauthorized Use of News Content

Dec 04, 2025
Chicago Tribune
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Summary

Chicago Tribune files copyright infringement lawsuit against Perplexity AI in federal court, alleging the startup illegally profits by reproducing Tribune reporting on its AI search platform without authorization.

Key Points

  • Chicago Tribune files copyright infringement lawsuit against Perplexity AI in New York federal court, alleging the California-based startup unlawfully profits from the newspaper's content
  • The complaint challenges Perplexity AI's unauthorized use of often fully reproduced Tribune reporting to provide answers on its AI-driven search engine platforms
  • The lawsuit represents another legal challenge facing AI companies over their use of copyrighted content to train and operate their artificial intelligence systems

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