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OpenAI appeal of German copyright ruling looks to focus on 'memorization' question

By Inbar Preiss and Frank Hersey ( December 12, 2025, 15:13 GMT | Comment) -- OpenAI’s decision to appeal a German court ruling in favor of music rights group GEMA may set a new precedent on whether “memorization” inside large language models counts as reproduction. In its early indications of its grounds for appeal, the AI developer has highlighted the significant impact not just for itself but for Germany and the EU of the lower court’s ruling that its previous ChatGPT models are a copy of the training data.Do AI models memorize their training data to allow themselves to subsequently reproduce the data based on prompts in the chatbots they support? The question looks set to be the core focus of OpenAI's appeal of a German court ruling that its chatbots reproduced infringing copies of song lyrics....

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