On September 29, 2025, Governor Gavin Newsom signed into law Senator Scott Wiener’s SB-53, which establishes new requirements for developers of frontier artificial intelligence (AI) models. Section 2 of the law enacts the Transparency in Frontier Artificial Intelligence Act (TFAIA), which requires certain developers of frontier models to: (1) publish a frontier AI framework on their website; (2) post a report on their website before making available a new frontier model to third parties; (3)…
By: Mayer Brown
By: Mayer Brown
