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Open Markets Institute Joins Amicus Brief Defending California AI Transparency Law in ...
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Fusion42 · 24 July 2026 · Fusion42 review
The Open Markets Institute has joined an amicus brief in X.AI LLC v. Bonta urging the Ninth Circuit to uphold California's law requiring AI companies to disclose training data. The case represents a first appellate test of whether states can mandate transparency from generative AI developers, with implications for future AI regulation across the United States.
This Wire brief sits within Fusion42's coverage of AI Frontier Models and Generative AI.
◆ ◆ The Wire takeaway
If California wins this appeal, you'll have to disclose what trained your model—or face disclosure lawsuits in every state that copies the law. Start now mapping your training data sources and what you can actually publish without exposing trade secrets or copyright risk.
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1 source · 24 Jul 2026
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