Encyclopedia Britannica and Merriam-Webster have filed a lawsuit against OpenAI, claiming the AI company used their copyrighted material to train its models and then generated responses that closely mirror their content. The complaint alleges that GPT‑4 "memorized" large portions of Britannica’s text and can reproduce near‑verbatim excerpts on demand, diverting traffic from the publishers’ sites. The case adds to a growing wave of legal actions by publishers seeking accountability for AI training practices, joining lawsuits from The New York Times and a settlement involving Anthropic. Read more →