## Chicago Tribune Files Suit Against Perplexity AI Over Copyright Infringement
The Chicago Tribune has joined a growing chorus of media organizations taking legal action against artificial intelligence companies, filing a lawsuit against AI search engine Perplexity AI. The suit alleges that Perplexity is systematically infringing on the Tribune’s copyrighted content by using its articles to train and generate summaries without permission or compensation.
Filed in the U.S. District Court for the Northern District of Illinois, the complaint asserts that Perplexity’s AI model ingests and repurposes Tribune articles, often presenting rewritten versions of the publisher’s work as its own output, sometimes with minimal or no attribution. This practice, the Tribune argues, undermines its ability to monetize its journalism through subscriptions and advertising, effectively free-riding on its significant investment in original reporting.
The lawsuit highlights concerns shared by numerous publishers regarding AI tools that summarize news articles, potentially reducing traffic to original sources and diminishing the value of copyrighted material. The Tribune is seeking damages and an injunction to prevent Perplexity from further using its content without authorization. This legal challenge underscores the ongoing battle between content creators and AI developers over the fair use and economic value of copyrighted information in the age of generative AI.