Full Breakdown
Encyclopedia Britannica and Merriam-Webster Sue OpenAI Over Copyright Infringement
3/17/2026, 11:48:18 AM
Allegations of Copyright and Trademark Violations
On March 13, 2026, Encyclopedia Britannica and its subsidiary Merriam-Webster filed a lawsuit against OpenAI in the U.S. District Court for the Southern District of New York. The complaint alleges that OpenAI has engaged in "massive copyright infringement" by using nearly 100,000 of Britannica's online articles and dictionary entries to train its AI models, including ChatGPT, without permission. The lawsuit claims that OpenAI's practices have resulted in the generation of outputs that contain "full or partial verbatim reproductions" of Britannica's content, which the publishers argue directly competes with their original material.
Britannica's complaint further asserts that OpenAI's AI-generated responses have "cannibalized" web traffic to their sites, effectively starving them of revenue. The lawsuit also highlights concerns over "hallucinations," where ChatGPT generates inaccurate information and falsely attributes it to Britannica, potentially damaging the publisher's reputation and undermining public access to reliable information.
Background and Context
This lawsuit is part of a broader trend, as numerous publishers, including The New York Times and Ziff Davis, have initiated legal actions against OpenAI for similar copyright violations. Britannica previously filed a related lawsuit against the AI startup Perplexity in September 2025, which is still pending. The legal landscape surrounding the use of copyrighted material for AI training is complex, with no clear precedent established regarding whether such practices constitute copyright infringement.
OpenAI's Response
In response to the allegations, an OpenAI spokesperson stated, "Our models empower innovation and are trained on publicly available data and grounded in fair use." The company maintains that its AI systems transform data into new outputs rather than reproducing it directly, arguing that this qualifies as fair use under copyright law.
Criticism and Opposition
Critics of OpenAI's practices, including Britannica, argue that the company's use of copyrighted material undermines the business models of traditional publishers. Britannica's lawsuit emphasizes that the economic viability of their digital content relies on user traffic, which is diminished when AI systems provide direct answers without redirecting users to the original sources.
What's Next
The lawsuit seeks unspecified monetary damages and a court order to prevent OpenAI from continuing its alleged unlawful practices. Given the ongoing multidistrict litigation involving OpenAI and other publishers, the outcome of this case could set significant precedents for how AI companies utilize copyrighted material in the future.
Conflicting Reports & Gaps
While Britannica's lawsuit presents a strong case against OpenAI, the legal arguments surrounding fair use remain contentious. Some legal experts suggest that the transformative nature of AI training could provide a defense for OpenAI, complicating the resolution of this case. The final outcome may hinge on the broader legal interpretations established in ongoing litigation involving multiple publishers against AI companies.
Verbatim Quotes
- “ChatGPT starves web publishers like [Britannica] of revenue by generating responses to users’ queries that substitute, and directly compete with, the content from publishers like [Britannica],” — Encyclopedia Britannica
- “ChatGPT helps enhance human creativity, advance scientific discovery and medical research, and enable hundreds of millions of people to improve their daily lives. Our models empower innovation, and are trained on publicly available data and grounded in fair use.” — OpenAI Spokesperson
This lawsuit underscores the growing tension between traditional publishers and AI companies over the use of copyrighted content, highlighting the need for clearer regulations in the rapidly evolving landscape of artificial intelligence.
