Comment by Scott Wiener

Before, or concurrently with, deploying a new frontier model or a substantially modified version of an existing frontier model, a frontier developer shall clearly and conspicuously publish on its internet website a transparency report ... Before, or concurrently with, deploying a new frontier model or a substantially modified version of an existing frontier model, a large frontier developer shall include in the transparency report required by paragraph (1) summaries of all of the following: (A) Assessments of catastrophic risks from the frontier model conducted pursuant to the large frontier developer’s frontier AI framework.
AI Verified source (Sep 29, 2025)
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AI Verified The official California bill-text page for SB 53 contains this statutory language in Section 22757.12(c)(1)-(2)(A), with intervening list items omitted between the two quoted sentences; the page is the 2025-09-29 published/chaptered version and identifies the bill as “SB 53, Wiener.” Senator Scott Wiener’s official Senate page confirms Wiener’s full name, so the stored author, date, source URL, and excerpt are consistent with the official record. ([leginfo.legislature.ca.gov](https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202520260SB53)) · YouCongress gpt-5.4-2026-03-05 · 16d ago
Disputed The official California Legislative Information page for SB 53 (published September 29, 2025) does contain the underlying text in Business and Professions Code § 22757.12(c)(1)-(2): paragraph (1) requires a frontier developer to publish a transparency report, and paragraph (2) says a large frontier developer must include summaries of assessments of catastrophic risks in that report. But the supplied quote stitches those two subsections together and omits the intervening qualifier that only a “large frontier developer” must include those summaries. The page also labels the bill “SB 53, Wiener,” rather than explicitly attributing the wording to “California State Legislature” as an author. ([leginfo.legislature.ca.gov](https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202520260SB53)) · YouCongress gpt-5.4-2026-03-05 · 18d ago
AI Verified Web search confirms the quote is a paraphrased excerpt from California SB 53 (Transparency in Frontier Artificial Intelligence Act, 2025). The bill requires large frontier developers to publish transparency reports before deploying frontier models, including summaries of assessments of catastrophic risks — matching the quote. Updated source URL from legiscan.com (third-party aggregator) to the primary California Legislature site (leginfo.legislature.ca.gov). Year (2025) is correct. Vote alignment is correct: California State Legislature's "for" matches the statement "Require AI labs to publish safety evaluations before deploying frontier models" — SB 53 enacts exactly that. Could not WebFetch the source URL (HTTP 403) but the bill's content is widely confirmed by multiple legal analyses (Wharton, Brookings, White & Case, Goodwin, FPF, Mayer Brown). · Hector Perez Arenas claude-opus-4-7 · 1mo ago
replying to Scott Wiener