What happened
Nichiren announced its generative AI voice usage guideline on October 15, built on three pillars: prior notice and consent, data control, and fair compensation.
Why it matters
Businesses using actors' voices would need prior approval at every stage, with blanket consent banned and approvals capped at one year, plus separate fees beyond normal performance pay.
WHO IT HITSCompanies developing or operating voice AI services in Japan, as well as talent agencies and production firms handling voice contracts, face a new voluntary industry standard they may need to reflect in consent and data-handling processes.
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The guideline arrives as voice AI that mimics real performers has spread since around 2023. In 2024, a group of voice actors released a video calling for an end to unauthorized use of voices. In 2025, NTT West launched an AI service using voices with actors' consent, showing both protest against unauthorized use and commercialization based on permission moving forward together.
Legal signals have also shifted. The Justice Ministry stated in August 2026 that unauthorized use may constitute a rights infringement, and in September the Tokyo District Court found in a case brought by actor Kenjiro Tsuda that a voice can be protected under publicity rights, although the deletion request was dismissed.
Nichiren says it will keep improving the guideline based on feedback and expand applied cases with partners such as Itochu Group, aiming ultimately to turn it into legislation. At the announcement, vice chairman Michihiro Ikemizu responded to industry pushback by saying things had been "too easy until now" and argued Japan lags other countries in rule-making.
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