CNN sues Perplexity for allegedly copying 17,000 stories: A deep-dive into the legal dispute

CNN has filed a lawsuit against AI search engine Perplexity, accusing the company of unlawfully copying and distributing its copyrighted journalism to power its AI products. The case is another addition to the growing legal battle between publishers and artificial intelligence firms over how AI models are trained and how chatbot-style search tools use news content.

The lawsuit comes as another major copyright fight unfolds in the AI industry. Earlier this month, publishers including Elsevier, Cengage, Hachette, Macmillan and McGraw Hill sued Meta Platforms in Manhattan federal court, alleging the tech giant illegally used books and journal articles to train its AI model Llama.