X.AI LLC v. Rob Bonta

On 29 December 2025, X.AI filed a claim in the US District Court for the Central District of California against Rob Banta, the Attorney General of the State of California.

The Plaintiff seeks declaratory and injunctive relief challenging California Assembly Bill 2013 ("AB 2013"), which requires developers of generative artificial intelligence systems to publicly disclose information about the data used to train their models, and requires developers to post documentation on their internet website regarding the data used to train the generative artificial intelligence system or service.https://calmatters.digitaldemocracy.org/bills/ca_202320240ab2013

X.AI claims that the information that AB 2013 would require disclosure of X.AI's trade secrets on developing gen AI (mainly Grok), without any promise of compensation in return, such information is confidential, economically valuable and protected.

X.AI brings claims under the Fifth Amendment takings clause, alleging an unconstitutional taking of private property without just compensation, as well as for unconstitutional vagueness. The Complaint invokes 42 U.S.C. § 1983, the doctrine of Ex parte Young, and the Declaratory Judgment Act, 28 U.S.C. §§ 2201(a) and 2202.

This summary is provided for educational and research purposes only and does not constitute legal advice. Allegations described are those made in the filings. Please consult the underlying source documents.