Senate Bill 53 advances from Assembly committee after debate over AI transparency, Cal Compute and whistleblower protections

Senator Wiener asked the Assembly Consumer Protection and Privacy Committee to pass SB 53, a transparency‑first approach to the state’s oversight of powerful AI systems that would require certain large developers to disclose safety and security protocols and report “critical safety incidents.”

The bill would apply only to developers above a specified compute threshold and $100 million in annual revenue, require 24‑hour notification to authorities of a defined critical safety incident and a 15‑day report to the attorney general, and create a public compute consortium called Cal Compute to broaden researcher access to expensive infrastructure. The author described the bill as a complement to, not a replacement for, prior safety proposals that sought testing and liability rules.

Why it matters: supporters said SB 53 aims to reduce catastrophic risks from advanced AI — from cyberattacks to models that could enable biological or other large‑scale harms — while preserving California’s innovation ecosystem. Opponents from the technology sector said the bill could sweep in low‑risk models, expose trade secrets or security protocols to adversaries, and create costly audit burdens. Several witnesses, including startup founders and academic advocates, urged the committee to preserve the bill’s disclosure and whistleblower elements while narrowing scope where appropriate.

Supporters and witnesses emphasized two policy elements: Cal Compute and whistleblower protections. Steve Newman, testifying in a personal capacity as a software entrepreneur, called the transparency requirements “the information we need to proceed with confidence.” Terry Oley of Economic Security California described Cal Compute as a way to “democratize access” to specialized chips and cluster compute that today are concentrated among a few firms.

Industry witnesses including representatives of the California Chamber of Commerce, TechNet and the Computer & Communications Industry Association testified in opposition unless amended, arguing the bill relies too heavily on developer size as a proxy for risk, overbroad public disclosures could create security risk, and third‑party audit requirements could be costly and ineffective. Committee members said they expect continued negotiations before floor votes and highlighted amendments already incorporated to narrow scope and add flexibility for the attorney general to update thresholds.

Outcome and next steps: Committee members moved SB 53 out as amended to the Appropriations Committee. The roll call recorded the measure advancing toward appropriations; later procedural votes kept the file on call as members completed the roll. The author said additional stakeholder engagement will continue before subsequent floor consideration.

Speakers quoted in this account were identified in the hearing record and include Senator Wiener (author), Steve Newman (software entrepreneur; Golden Gate Institute for AI), Terry Oley (Economic Security California), and several organizational witnesses in support and opposition.