LLMHigh
Perplexity AI Reportedly Accused in Federal Lawsuit of Purported Copyright Infringement and False Attribution of Chicago Tribune Content
- Occurred
- Dec 4, 2025
- Published
- Dec 5, 2025
- Source
- AI Incident Database
Summary
The Chicago Tribune filed a federal lawsuit alleging that Perplexity AI unlawfully reproduced and paraphrased its copyrighted journalism in generative chatbot and search outputs. The complaint claims the AI system produced substitutive answers that bypassed links to the Tribune's website, diverted revenue, and at times hallucinated inaccurate information falsely attributed to the newspaper.
Developers
- Perplexity AI
Deployers
- Perplexity AI
Harmed parties
- Chicago Tribune
- Journalistic integrity
- Epistemic integrity
Classification
Category confidence: 90%
Severity confidence: 95%
Rationale: Federal lawsuit against an LLM for copyright infringement and hallucinations constitutes a major legal and financial incident.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8