The official Congress record published by the US Government Publishing Office shows Senator Bernie Sanders introduced S. 5493, the Ban Artificial Superintelligence Act of 2026, on 23 September 2026.
The restraint market resolves YES if, between 10 September and 9 October 2026, a bill is introduced in the US Congress or presented in the UK Parliament, an executive order is signed, a binding order is issued, or a formal consultation is launched whose stated purpose is to limit the development or release of the most powerful AI systems, as recorded on congress.gov, bills.parliament.uk, whitehouse.gov or gov.uk. Alex Sobel's Artificial Superintelligence Bill, presented on 8 September, does not count, and nor do statements of intent, letters or hearings; where the registers are ambiguous the Guardian and BBC reports of the step settle it.
We found eight public warnings since March 2023. In each, staff or leaders at a leading AI lab said their own technology could cause a disaster or end humanity. We then checked whether, within 30 days, the UK government or Parliament, or the US federal government, took a formal step to hold back the building or release of the most powerful models.