Japan to require AI firms to disclose training data

Japan is considering setting out a nonbinding code for generative artificial intelligence businesses to encourage them to disclose their AI training data and methods for collecting such data to the public. A government panel Tuesday broadly approved a plan to adopt what is known as a "principle code" for generative artificial intelligence businesses to protect intellectual property rights by urging firms to disclose their AI training data and methods for collecting such data to the public. A draft code was presented at an online meeting of an expert panel on intellectual property rights in the AI era. It is based on a law on AI-related technology enacted in May 2025 and seeks to balance rights protection with technological innovation. The government will use a "comply or explain" approach, under which it will set out a nonbinding code for generative AI businesses, including system developers and service providers, allowing them to choose either to comply with the code or publicly explain why they will not comply. Firms that decide to comply with the code will announce their compliance on their websites and notify the government.