Japan’s Justice Ministry is drafting a report to protect the voices and images of celebrities from unauthorized generative AI use. The proposal, submitted to an expert committee on Monday, aims to establish civil responsibility for AI-generated content that infringes on a person’s “right of publicity” or causes emotional distress, according to the ministry.
Defining Illegal AI Voice Use in Japan
Japanese courts haven’t issued a ruling on rights related to AI-generated voices yet. To fill this gap, the Justice Ministry is creating a framework to serve as a reference for future lawsuits and AI development.
The draft report highlights a specific high-risk scenario: using generative AI to create a sound source that misleads the public into thinking a voice actor is reading obscene text, then posting that content on social media for profit. According to the ministry, such acts could be deemed illegal if they affect a person’s honor and peace of mind “beyond a tolerable limit.”
Did you know? The “right of publicity” is a legal doctrine that allows celebrities to control and profit from the commercial use of their name, image, and likeness.
The Conflict Between ‘AI Covers’ and Artistic Expression
The rise of “AI covers”—where AI tools learn a professional singer’s or voice actor’s voice to perform different songs—has sparked a push for countermeasures from anime voice actors. The Justice Ministry is now attempting to draw a line between commercial exploitation and creative art.
The draft report suggests that “entertaining expressions” used to impersonate celebrities or mimic their voices are generally considered artistic. In these specific cases, the ministry states such acts typically do not infringe on the right of publicity.
Criteria for Voice Similarity
Determining when an AI voice is “too similar” to a human is a core challenge. The ministry’s draft includes criteria to determine the level of similarity between a famous individual’s voice and an AI-generated version to help courts decide if a violation has occurred.
Pro Tip: For creators using AI, documenting the intent of a piece as “parody” or “artistic expression” may be a key defense under the guidelines proposed by the Justice Ministry.
Future Legal Trends for Generative AI
The ministry expects to release its final report as early as August after incorporating feedback from the expert committee. This document will likely shift how AI developers in Japan approach training data and how artists protect their intellectual property.
If adopted, these guidelines will move Japan closer to a structured legal environment where “digital twins” and voice clones are subject to civil liability, particularly when used for profit or defamation.
Frequently Asked Questions
Is it illegal to use AI to mimic a celebrity’s voice in Japan?
It depends. According to the Justice Ministry draft, if the use is for profit and harms a person’s honor or peace of mind beyond a tolerable limit, it could be an illegal act. However, artistic impersonations are generally not considered infringements.
What are AI covers?
AI covers are songs created by training AI tools on the voices of professional singers or voice actors to make them “sing” songs they never actually recorded.
When will the final report be released?
The Justice Ministry aims to release the final report as early as August.
What do you think about the balance between AI art and celebrity rights? Let us know in the comments below or subscribe to our newsletter for more updates on AI law.
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