UK Artificial Superintelligence Security Bill

adopt ControlAI's bill. CLICK TO SEE: 70+ cross-party MPs and Peers call on Prime Minister Andy Burnham to evaluate and adopt ControlAI's bill. CLICK TO SEE: 70+ cross-party MPs and Peers call on Prime Minister Andy Burnham to evaluate and

At ControlAI, we work with lawmakers to introduce legislation prohibiting the development of superintelligence, starting domestically as the first step toward a binding international agreement.

In the UK, our Artificial Superintelligence Security Bill was introduced in the House of Commons by Alex Sobel MP on 8 September 2026, with cross-party co-sponsorship.

It was a historic moment: the first piece of legislation in any legislature designed to prohibit the development of superintelligent AI, a technology that leading experts warn poses an extinction risk.

DOWNLOAD THE BILL DRAFT (PDF)

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Watch the First Reading

Endorsements for the bill

Lord Browne of Ladyton

Former Defence Secretary

It is not in the interest of any state to allow the development of a technology no-one can control, that would strip all states of their sovereignty and that could extinguish all humanity. Only binding law can stop leading AI companies from racing to build superintelligence and the introduction of ControlAI’s Bill lets Parliament enshrine that principle into law. This would set a precedent that other states could follow and would place Britain in a position of leadership in assembling a coalition of states pushing for a global prohibition.

Beatrice Fihn

Executive Director of Lex International Former Executive Director of ICAN, the 2017 Nobel Peace Prize laureate

Leading AI experts, and even AI company CEOs, admit that superintelligent AI could go catastrophically wrong and drive humanity to extinction. I’m encouraged to see lawmakers taking the lead on its prohibition, since there’s no scientific consensus that it can be developed safely and controllably. Like nuclear weapons, superintelligent AI isn’t an inevitable fact of human life, and lawmakers and civil society can still shape its course.

Sir Stephen Fry

Polymath, actor, author, broadcaster

"… The possibility of AI reaching Superintelligence presents threats to our species of equal if not greater potential for existential harm than nuclear power … By introducing ControlAI's Bill as a Private Member's Bill, MPs would allow Britain to lead the way in keeping this technology safe."

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Professor Stuart Russell OBE

Author of the authoritative textbook on AI

Certain companies, for private gain, are intending to develop and deploy technology that they assert has a significant chance of causing human extinction. Humanity has not given its permission for this absurd form of Russian roulette, and governments should respond accordingly.

Daniel Kokotajlo

Ex-OpenAI Researcher

Big AI companies are racing to train superintelligent AI; they fear each other and say ‘if we don’t do it first, someone even worse will.’ They can’t even align or control their AIs today, and the AIs of the future will be much smarter and harder to understand. Even if they succeed, they will then have created the most intense concentration of power in human history — a new artificial species of superintelligences obedient to the commands and values of a tiny handful of people. This situation is insane and must not be allowed to continue. The UK can’t stop it unilaterally, but neither could it win World War Two unilaterally; the UK has even less reason to surrender now than it did then.

Endorsements for the bill

Lord Browne of Ladyton

Former Defence Secretary

Professor Stuart Russell OBE

Author of the authoritative textbook on AI

See All Endorsements

UK Artificial Superintelligence Security Bill

Watch the First Reading

Endorsements for the bill

Lord Browne of Ladyton

Beatrice Fihn

Sir Stephen Fry

Professor Stuart Russell OBE

Daniel Kokotajlo

Endorsements for the bill

Lord Browne of Ladyton

Professor Stuart Russell OBE

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