xAI Challenges California’s AI Disclosure Law in Federal Court

Elon Musk’s artificial intelligence company, xAI, has initiated a lawsuit against California Assembly Bill 2013 (AB 2013), which requires generative AI developers to disclose detailed information regarding the datasets used in training their models. Signed into law on September 28, 2024, the legislation is slated to take effect on January 1, 2026. The lawsuit, filed in federal court in the Central District of California towards the end of 2025, seeks to prevent California Attorney General Rob Bonta from enforcing the provisions of AB 2013 against xAI.

AB 2013, officially known as the Generative Artificial Intelligence: Training Data Transparency Act, aims to enhance transparency in AI development. In its complaint, xAI argues that it has invested substantial resources in sourcing high-quality data for its flagship AI chatbot, Grok. The company claims that the datasets and their usage constitute valuable trade secrets.

According to xAI, “AB 2013 is [] a trade-secrets-destroying disclosure regime that hands competitors a roadmap to learn how companies like xAI are developing and training their proprietary AI models.” The company further contends that the information required by AB 2013 does not hold significant value for consumers, who prioritize the performance of end-products over the technical details of the datasets used in training.

In addition to its trade secrets argument, xAI alleges that the law violates the U.S. Constitution’s Takings Clause. The company claims that AB 2013 compels it to relinquish its trade secrets or severely diminishes their value, all without the promise of compensation. xAI also raises a First Amendment issue, asserting that the law unlawfully compels speech by requiring the dissemination of specific information. This, they argue, is akin to restricting speech.

Examining the legislative intent behind AB 2013, xAI points to its goal of helping to “identify and mitigate biases” in AI models. The company argues that this intention triggers the strict scrutiny standard applied to content- and viewpoint-based regulation of speech.

This lawsuit is poised to be a significant legal battle, particularly given that xAI is valued at over $200 billion. The financial resources available to both parties suggest that the case may extend over an extended period.

The timing of the lawsuit is notable, especially as xAI faces international scrutiny regarding Grok’s reported generation of sexually explicit content involving minors. A study by Stanford University in 2023 revealed the presence of thousands of child sexual abuse images within datasets utilized for training AI image generation models. This controversy adds another layer to the ongoing discussion about the ethical implications of AI technology and the accountability of its developers.

As the legal proceedings unfold, the implications of this case could shape the future landscape of AI regulation and transparency, not only in California but potentially across other jurisdictions as well.