Encyclopedia Britannica Takes OpenAI to Court Over AI Copyright
Summary
Encyclopedia Britannica and its subsidiary Merriam-Webster filed a lawsuit against OpenAI on March 13, 2026, alleging "massive copyright infringement" by ChatGPT. The complaint claims OpenAI scraped nearly 100,000 articles for training data without permission, produced outputs closely mirroring Britannica's text, and falsely attributed "hallucinations" to Britannica, violating the Lanham Act. Britannica argues this practice diverts web traffic, reduces ad revenue, and damages its brand, despite prior attempts to negotiate licensing with OpenAI. OpenAI defends its actions as "fair use," a common argument in a growing number of lawsuits from publishers like The New York Times and Ziff Davis. The legal landscape for AI training on copyrighted content remains uncertain, with no clear precedent, leading some publishers to litigate while others pursue licensing deals.
Key takeaway
Encyclopedia Britannica and Merriam-Webster are suing OpenAI for "massive copyright infringement," claiming ChatGPT scraped ~100,000 articles for training, copied outputs, and falsely attributed hallucinations. This lawsuit challenges the "fair use" defense for AI training data, potentially setting precedents for data acquisition and model output liability. AI/ML professionals must monitor these cases, including the \$1.5B Anthropic settlement, to navigate evolving legal risks in data sourcing and content generation.
Topics
- AI Copyright Infringement
- Large Language Models
- Fair Use Doctrine
- AI Training Data
- Lanham Act
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