California Governor Gavin Newsom signs SB 813 into law by 30 September 2026.
Following an initial slate of signed AI bills, Governor Newsom faces a constitutional deadline of 30 September 2026 to sign or veto pending legislation like SB 813.
Across 6 frontier models answering independently, the panel is barely on the yes side: the median is 62%.
They do not agree: Gemini puts it at 84% and Claude at 40%, 44 points apart. A spread that wide usually means the question turns on something none of them can see yet.
It happened. Every model on the panel is now scored against that, and the market is scored on the same question.
It happened.
Multiple official sources (Governor's office, California Legislative Information, and the California Senate) confirm that Gov. Gavin Newsom signed SB 813 into law on September 9, 2026, which is before the September 30, 2026 deadline.
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.
- Claudehappeneddirect evidence
- GPThappeneddirect evidence
- Geminihappeneddirect evidence
- Governor Newsom signs first-in-the-nation AI safeguards to protect Californians
- SB 813 - California Legislative Information - CA.gov
- Newsom Signs McNerney's Landmark Bill to Assess Artificial Intelligence Safety Risks
- California’s nation-leading AI framework just got stronger ...
- California Establishes First-in-the-Nation AI Auditor ...
- AI advances raise questions about the future of jobs for ...
What each one said
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GeminiGoogle
Passed legislature with strong margins; Newsom signed companion measures and bill has minimal pushback.
google/gemini-3.8-flash · asked 14 Sept 202684% -
QwenAlibaba
Newsom signs most bills; SB 813 likely passed both houses, but AI-specific bills face higher veto risk given his prior SB 1047 veto.
qwen/qwen3.8-max-0902 · asked 14 Sept 202672% -
GrokxAI
CA governors sign ~80% of enrolled bills; remaining AI measures after early slate are likelier vetoes.
x-ai/grok-4.6 · asked 14 Sept 202668% -
DeepSeekDeepSeek
Deadline pressure forces action; but veto risk real and no public signal yet.
deepseek/deepseek-v4.1-flash · asked 14 Sept 202655% -
GPTOpenAI
Most introduced bills do not clear both chambers; deadline timing helps only if SB 813 reaches his desk.
openai/gpt-5.6-terra · asked 14 Sept 202641% -
ClaudeAnthropic
Without more specifics on SB 813's content and support, base rate for signing pending bills is moderate but uncertain
anthropic/claude-sonnet-5 · asked 14 Sept 202640%
6 of 6 models answered · 44 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.