This is the new MLex platform. Existing customers should continue to use the existing MLex platform until migrated.
For any queries, please contact Customer Services or your Account Manager. Dismiss

xAI loses bid to block California training data disclosure law

( March 4, 2026, 23:28 GMT | Official Statement) -- MLex Summary: A California federal judge has denied a motion by Elon Musk's xAI for a preliminary injunction to block enforcement of a California law, Assembly Bill 2013, that requires AI developers to publish a summary of the datasets used in the development of generative AI system or service. Musk says AB 2013 is unconstitutional. "Ultimately, Plaintiff has demonstrated a distinct possibility of prevailing on the merits," wrote US District Judge Jesus Bernal in denying xAI's motion. "But it had not demonstrated a likelihood of success on the merits. The information before the Court is insufficient to come to such a conclusion at this stage. Plaintiff therefore does not satisfy this threshold inquiry for a preliminary injunction on its First Amendment claim."See attached document....

Prepare for tomorrow’s regulatory change, today

MLex identifies risk to business wherever it emerges, with specialist reporters across the globe providing exclusive news and deep-dive analysis on the proposals, probes, enforcement actions and rulings that matter to your organization and clients, now and in the longer term.


Know what others in the room don’t, with features including:

  • Daily newsletters for Antitrust, M&A, Trade, Data Privacy & Security, Technology, AI and more
  • Custom alerts on specific filters including geographies, industries, topics and companies to suit your practice needs
  • Predictive analysis from expert journalists across North America, the UK and Europe, Latin America and Asia-Pacific
  • Curated case files bringing together news, analysis and source documents in a single timeline

Experience MLex today with a 14-day free trial.

Start Free Trial

Already a subscriber? Click here to login