
California's new AI law mandates dataset disclosure, content-origin markers by 2026
California's new AI law, starting in 2026, will require developers with over 1 million users to share summaries of their training data and to mark where AI-generated content comes from. This may help address concerns about unclear authorship and the reuse of existing material by AI, but some risks, like data leaks and loss of original context, remain. Legal experts say that U.S. copyright still generally needs meaningful human input, so pure machine output often does not qualify. Companies are advised to use safeguards like agent registries and clear labeling of AI involvement. Experts suggest that while these rules are a first step, creative use of AI content may outpace policy, so careful tracking and governance are important.













