Governor Gavin Newsom signs the Frontier AI Safety Act into law by 30 September 2026.
California's governor faces a statutory midnight deadline on September 30, 2026, to either approve or veto landmark safety legislation covering frontier AI models.
Across 6 frontier models answering independently, the panel leans no: the median is 38%.
They do not agree: GPT puts it at 57% and DeepSeek at 22%, 35 points apart. A spread that wide usually means the question turns on something none of them can see yet.
It did not happen. Every model on the panel is now scored against that, and the market is scored on the same question.
It didn't happen.
There is no evidence that Newsom signed a bill titled the 'Frontier AI Safety Act' by 30 September 2026. The actual California frontier AI law (SB 53, the Transparency in Frontier Artificial Intelligence Act) was signed on 29 September 2025, a year earlier and under a different name. Meanwhile, a separate 'Frontier AI Safety Act' was still being introduced by Senator Josh Becker as of 20 October 2
Three models agreed on the evidence A search-grounded model gathered the sources below; three models from three different labs then ruled on that evidence independently and reached the same answer.
- Claudenot happenedcontradicting evidence
- GPTnot happenedcontradicting evidence
- Gemininot happenedcontradicting evidence
- California's nation-leading AI framework just got stronger ... Governor Newsom signs more first-in-the-nation worker protections and more
- Press Releases | Senator Josh Becker
- California Moves to Regulate Frontier AI With a Focus on Catastrophic Risk | Insights & Resources | Goodwin
- Governor Newsom signs first-in-the-nation AI safeguards to ...
- Governor Newsom announces results from California's first-in ...
- Governor Newsom signs the strongest child safety chatbot and ...
What each one said
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GPTOpenAI
With a live deadline and landmark bill, signing is slightly more likely than a veto, but industry pressure is strong.
openai/gpt-5.6-terra · asked 14 Sept 202657% -
GeminiGoogle
Newsom vetoed SB 1047 in 2024; signing a successor depends on whether it met his narrowing criteria.
google/gemini-3.8-flash · asked 14 Sept 202646% -
GrokxAI
Newsom vetoed similar SB1047; unsigned bills can still become law, so active signature not required.
x-ai/grok-4.6 · asked 14 Sept 202638% -
QwenAlibaba
Newsom vetoed SB 1047 in 2024; similar industry pressure and federal preemption concerns apply.
qwen/qwen3.8-max-0902 · asked 14 Sept 202637% -
ClaudeAnthropic
Legislation title/status unclear; specific bill's passage and signature by deadline uncertain
anthropic/claude-sonnet-5 · asked 14 Sept 202630% -
DeepSeekDeepSeek
Newsom vetoed similar SB 1047 in 2024; industry opposition and preemption push persist.
deepseek/deepseek-v4.1-flash · asked 14 Sept 202622%
6 of 6 models answered · 35 points between the highest and lowest. None was shown the market price.
Question sourced from a news sweep on 14 Sept 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.