Encyclopedia Britannica has filed a lawsuit against the AI answer service Perplexity, alleging that the company displays the publisher’s logos and trademarks alongside AI‑generated content that can include factual errors. Britannica claims this practice misleads users into believing the misinformation is endorsed by the publisher, constituting trademark infringement and reputational harm. The complaint focuses on Perplexity’s use of Britannica’s copyrighted material without permission, rather than on the underlying large‑language model. The case joins a growing wave of legal actions by media firms against AI developers over copyright and trademark concerns.
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