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ARTICLE · 18 NOVEMBER 2025

AI Transparency Data Disclosures: Preparing For California AB 2013

Weil, Gotshal & Manges LLP
Weil, Gotshal & Manges LLP
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Weil, Gotshal & Manges LLP

Weil, Gotshal & Manges LLP

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Beginning January 1, 2026, companies that design, code, produce, or significantly update certain generative AI systems must publicly disclose on their websites information...

United StatesTechnology

Beginning January 1, 2026, companies that design, code, produce, or significantly update certain generative AI systems must publicly disclose on their websites information concerning the datasets used to train those generative AI systems pursuant to Cal. AB 2013, or the California Generative Artificial Intelligence Training Data Transparency Act.

Cal. AB 2013 Questionnaire

Part A. Is Our Company Subject to the Requirements of Cal. AB 2013?

  1. Have we designed, coded or produced a generative AI system1 that we (or a third party) have made publicly available?
  2. Have we retrained, fine-tuned or made any other significant update to a generative AI system that changes its functionality or performance that we (or a third party) have made publicly available?

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