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Nielsen’s Gracenote sues OpenAI over use of metadata in AI training

By Thomson Reuters Mar 10, 2026 | 2:59 PM

By Blake Brittain

March 10 (Reuters) – Nielsen’s Gracenote, which creates metadata that identifies movies, TV programs and other media, sued OpenAI ​in Manhattan federal court on Tuesday, ‌alleging that its work was used without permission to train artificial intelligence.

(Reporting by Blake Brittain in Washington; Editing by ​Edmund Klamann)