# Merriam-Webster Type: Company Source: GetYourBrief — https://getyourbrief.com/entity/merriam-webster Canonical HTML page: https://getyourbrief.com/entity/merriam-webster ## Timeline - **2026-03-17**: Britannica Files Suit — Legal action is initiated in Manhattan federal court alleging copyright infringement. - **2026-03-17**: Dictionary Suit Filed — Merriam-Webster and Britannica file a joint lawsuit alleging data theft and traffic loss. - **2026-03-16**: Dictionary Lawsuit — Encyclopedia Britannica and Merriam-Webster file a joint lawsuit against OpenAI over 100,000 articles. - **2023-12-27**: NYT Lawsuit — The New York Times sues OpenAI and Microsoft for copyright infringement. - **2023-12-27**: NYT Lawsuit — The New York Times sues OpenAI for copyright infringement, setting a legal precedent. - **2023**: Legal Precedents — The New York Times and other publishers file similar copyright suits against OpenAI. - **2022-11-30**: ChatGPT Launch — OpenAI releases ChatGPT, sparking global interest in LLMs trained on massive datasets. - **2022-11-30**: ChatGPT Launch — OpenAI releases ChatGPT, utilizing vast amounts of web-scraped data for training. - **2022-11**: ChatGPT Launch — OpenAI releases ChatGPT, sparking global debate over training data sources. ## Recent coverage (8 stories, network-wide) ### Merriam-Webster and Britannica Sue OpenAI for 'Cannibalizing' Dictionary Data 2026-03-17 23:58:15 · Sector: ai · Sentiment: Negative · Impact: 7/10 · Sources: 2 Merriam-Webster and its parent company Britannica have filed a lawsuit against OpenAI, alleging that ChatGPT was trained on their proprietary reference material without permission. The plaintiffs argue that the AI's ability to provide instant definitions has decimated their web traffic and threatens the economic viability of traditional lexicography. Full story: https://getaibrief.com/story/merriam-webster-britannica-openai-lawsuit ### Merriam-Webster and Britannica Sue OpenAI Over AI Training 'Theft' 2026-03-17 23:54:59 · Sector: startups · Sentiment: Negative · Impact: 7/10 · Sources: 2 Merriam-Webster and Britannica have filed a lawsuit against OpenAI, alleging that ChatGPT was trained on their proprietary reference material without authorization. The plaintiffs claim the AI system 'cannibalizes' their web traffic by providing direct answers that bypass the need for their traditional digital platforms. Full story: https://getstartupbrief.com/story/merriam-webster-britannica-openai-lawsuit ### Britannica vs. OpenAI: The Battle for Authoritative Data in the AI Era 2026-03-17 23:54:51 · Sector: startups · Sentiment: Negative · Impact: 7/10 · Sources: 2 Encyclopedia Britannica has filed a major copyright infringement lawsuit against OpenAI, alleging the unauthorized use of its 250-year-old archive to train generative AI models. The case highlights a growing legal push to force AI developers to pay for high-fidelity, curated training data. Full story: https://getstartupbrief.com/story/britannica-sues-openai-copyright-infringement ### Britannica Sues OpenAI: A New Front in the AI Copyright Battle 2026-03-17 06:12:02 · Sector: ai · Sentiment: Negative · Impact: 7/10 · Sources: 2 Encyclopedia Britannica and its subsidiary Merriam-Webster have filed a lawsuit against OpenAI in Manhattan federal court, alleging unauthorized use of their reference materials for AI training. This legal action marks a significant escalation in the conflict between high-quality content publishers and generative AI developers over intellectual property rights. Full story: https://getaibrief.com/story/britannica-merriam-webster-sue-openai-copyright ### Encyclopedia Britannica Sues OpenAI Over AI Training Data Infringement 2026-03-17 06:11:56 · Sector: saas · Sentiment: Negative · Impact: 7/10 · Sources: 2 Encyclopedia Britannica and its subsidiary Merriam-Webster have filed a lawsuit against OpenAI in Manhattan federal court, alleging the unauthorized use of their copyrighted reference materials to train large language models. This legal challenge represents a significant escalation in the battle over high-quality data ownership in the generative AI era. Full story: https://getsaasbrief.com/story/britannica-merriam-webster-sue-openai-copyright ### Britannica Sues OpenAI: A New Front in the Battle for AI Training Data 2026-03-17 06:10:23 · Sector: startups · Sentiment: Negative · Impact: 7/10 · Sources: 2 Encyclopedia Britannica and its subsidiary Merriam-Webster have filed a federal lawsuit against OpenAI, alleging unauthorized use of their curated reference materials to train large language models. The legal action marks a significant escalation in the conflict between legacy knowledge institutions and AI developers over the value of 'ground truth' data. Full story: https://getstartupbrief.com/story/britannica-merriam-webster-sue-openai-copyright ### Britannica and Merriam-Webster Sue OpenAI Over Copyright Infringement 2026-03-17 06:10:18 · Sector: legal · Sentiment: Negative · Impact: 7/10 · Sources: 2 Encyclopedia Britannica and its subsidiary Merriam-Webster have filed a lawsuit against OpenAI in Manhattan federal court, alleging the unauthorized use of their reference materials to train large language models. The legal action marks a significant escalation in the battle between legacy knowledge institutions and AI developers over the value of curated, authoritative data. Full story: https://getlegalbrief.com/story/britannica-merriam-webster-sue-openai-copyright ### Dictionary Giants Sue OpenAI Over 100,000 Copyrighted Articles 2026-03-16 18:09:57 · Sector: legal · Sentiment: Negative · Impact: 7/10 · Sources: 2 Encyclopedia Britannica and Merriam-Webster have filed a joint lawsuit against OpenAI, alleging the unauthorized use of nearly 100,000 articles for training generative AI models. The legal action marks a critical escalation in the battle over intellectual property rights in the age of large language models. Full story: https://getlegalbrief.com/story/dictionary-giants-sue-openai-copyright-infringement --- This page is a machine-readable summary. Sentiment measures the directional read of each development for this entity, not the tone of the reporting; impact weights consequence, not syndication reach. See https://getyourbrief.com/guides/methodology for the full editorial methodology.