Studio Ghibli Challenges OpenAI Over AI Training Data

Japanese publishers, including Studio Ghibli, are pushing back against OpenAI's use of copyrighted content.

A Japanese trade organization, CODA, representing major publishers like Studio Ghibli, has formally requested OpenAI to cease using their content for AI training without explicit permission. This move highlights growing concerns over copyright infringement in the generative AI space, especially as tools like Sora become more prevalent.

Katie Rowan

By Katie Rowan

November 4, 2025

4 min read

Studio Ghibli Challenges OpenAI Over AI Training Data

Key Facts

  • Japan's Content Overseas Distribution Association (CODA) requested OpenAI to stop using members' content for AI training without permission.
  • Studio Ghibli, a prominent animation studio, is a member of CODA and has been significantly impacted by AI-generated content mimicking its style.
  • OpenAI's approach has been described as 'ask forgiveness, not permission' regarding copyrighted content.
  • The legal precedent for AI training on copyrighted material is unclear, especially in the United States.
  • CODA believes OpenAI's actions may constitute a copyright violation under Japanese law.

Why You Care

Ever wonder if the art you love could be used to train AI without your say-so? What if your favorite animated characters suddenly appeared in AI-generated content? This is precisely the concern for major Japanese publishers, including the iconic Studio Ghibli. They are now actively challenging OpenAI’s practices. This issue directly impacts creators, copyright holders, and anyone who values original artistic work. It asks a crucial question: where do we draw the line between creation and intellectual property rights?

What Actually Happened

Japan’s Content Overseas Distribution Association (CODA) has formally requested that OpenAI stop using its members’ content for machine learning without prior permission, according to the announcement. This organization represents prominent Japanese publishers, including the world-renowned animation studio, Studio Ghibli. Studio Ghibli, known for films like “Spirited Away” and “My Neighbor Totoro,” has seen its distinct artistic style heavily replicated by generative AI products. For example, when ChatGPT’s native image generator launched, users frequently prompted it to create images in the “Ghibli style.” This trend even caught the attention of OpenAI CEO Sam Altman, as mentioned in the release. Now, with the increasing accessibility of OpenAI’s Sora app and its video generation capabilities, the issue has become more important.

Why This Matters to You

This creation is significant for anyone involved in creative work or who consumes digital content. OpenAI’s current approach often involves using copyrighted material first and seeking forgiveness later, as detailed in the blog post. This strategy has led to users generating images and videos of copyrighted characters and even deceased celebrities without explicit consent. Think of it as your unique artistic signature being copied and pasted without your permission. This raises important questions about fairness and compensation for creators. If you’re a content creator, your work could be next. If you’re an AI enthusiast, understanding these ethical boundaries is crucial for responsible creation.

Key Concerns for Creators and Consumers:

  • Copyright Infringement: AI models are trained on vast datasets, often including copyrighted works.
  • Lack of Consent: Content creators frequently do not give explicit permission for their work to be used.
  • Replication of Style: AI can mimic distinctive artistic styles, potentially diluting original artists’ brands.
  • Ethical Implications: Using content without permission raises ethical questions about ownership and fair use.

This situation affects your digital rights. Do you believe AI companies should compensate creators whose work fuels their models? The team revealed that while U.S. law remains unclear on AI training with copyrighted material, CODA views this as a potential copyright violation under Japanese law.

The Surprising Finding

Here’s the twist: OpenAI’s strategy has been to “ask forgiveness, not permission,” as the research shows. This means they often train their AI models on vast amounts of data, including copyrighted works, without prior consent from the creators. This approach has led to widespread complaints. For instance, the estate of Dr. Martin Luther King, Jr., has expressed concerns about the potential for deepfakes using the Sora app, as mentioned in the release. It’s surprising because one might assume a company of OpenAI’s stature would prioritize securing permissions upfront. Instead, they operate in a legal gray area, challenging traditional notions of copyright. This challenges the common assumption that all data used for AI training is either public domain or explicitly licensed. This proactive stance by Japanese publishers highlights a growing global pushback against this ‘ask for forgiveness’ model.

What Happens Next

The ball is now in OpenAI’s court. It is up to OpenAI to decide whether to cooperate with CODA’s requests, according to the announcement. If they do not, the aggrieved parties could file a lawsuit. However, the legal landscape for AI and copyright is still developing, particularly in the United States. While there is little precedent, a previous case involving Anthropic’s AI training on copyrighted books did result in fines for pirating the books, even though the training itself was not deemed illegal, as the paper states. Looking ahead, we might see more clarity in copyright law by late 2026 or early 2027. This could establish clearer guidelines for AI developers. For example, imagine a future where AI models are legally required to source data only from explicitly licensed or public domain content. Creators should consider registering their works and staying informed about these legal developments. The industry will likely see increased pressure for transparent data sourcing and compensation models for artists.

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