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Studio Ghibli and Top Japanese Studios Demand OpenAI Stop Training Sora 2 on Their Works

The complaint challenges OpenAI's opt-out model under Japanese law.

Overview

  • Industry group CODA, which includes Studio Ghibli, Toei Animation, Square Enix, Toho and others, sent a public letter on October 27–28 demanding OpenAI immediately cease using members' works and issue a formal response.
  • CODA says a large share of Sora 2 outputs “resemble substantially” original Japanese images, concluding the model was trained on protected content.
  • The group argues OpenAI’s voluntary opt-out system forces rights holders to police inclusion and may run counter to Japan’s copyright framework.
  • Japan’s intellectual property minister, Minoru Kiuchi, warned OpenAI to ensure its systems respect local law, calling manga and anime irreplaceable cultural assets.
  • OpenAI had not publicly responded as of November 4, after Sora 2’s September launch intensified concern by generating high-fidelity, realistic video.