Journalism begins where hype ends

,,

I do not fear computers. I fear the lack of them."

—Isaac Asimov

UK AI Politics Heats Up Over Frontier Model Access, Superintelligence Ban Bill

Anthropic’s decision not to give the UK AI Security Institute pre-release access to Claude Mythos 5.1 has intensified concerns over Britain’s role in frontier AI safety, as MP Alex Sobel introduces a bill seeking to prohibit the development of superintelligent AI in the UK.
UK House of Commons chamber as lawmakers debate legislation, including a bill seeking to prohibit the development of superintelligent AI.
September 10, 2026 12:23 PM IST | Written by Supriya Singh | Edited by Vaibhav Jha

The case of superintelligent AI and the frontier AI race has raked up UK politics after US based Anthropic AI company allegedly denied access to its recently released Claude Mythos 5.1 model to UK based AI Safety Institute (AISI).

MP Liam Byrne, chair of the Business and Trade Committee of UK, a cross-party group of the UK Parliament, wrote a letter to AISI seeking details on whether they were denied access to Anthropic’s latest model Claude Mythos 5.1 for testing.

“Britain cannot lead on AI security if our safety institute cannot test the world’s most advanced models before they are released. Reports that Anthropic did not give the AISI pre-release access to Claude Mythos 5.1 raise serious questions about whether Britain has the access and leverage it needs,” wrote MP Byrne.

 

Anthropic had released Claude Fable 5.1 and Claude Mythos 5.1 on September 1 claiming them to be the most sophisticated and efficient models released by the AI company till date. While Claude Fable 5.1 was released worldwide, Mythos 5.1 (the same model but with lesser safeguards) was only made available to “vetted individuals and organizations” in tandem with the US government.

According to media reports, AISI was denied access to Claude Mythos 5.1 by Anthropic.

In his letter addressed to the director of AISI, MP Byrne has asked whether the testing agency was given access to Claude Mythos 5.1 before it was launched by Anthropic and whether the agency believes UK’s ability to maintain a “world-leading role in Frontier AI safety and security evaluation needs to be reassessed.”

This is not the first time UK has objected to denial of access to frontier AI models by US based companies, calling it an attack on UK’s Sovereign AI ambitions.

In July, when the US government put export control on Anthropic and OpenAI’s frontier AI models, UK AI Minister Kanishka Narayan had objected to the attempts to create AI hegemony by US.

Meanwhile, British lawmaker Alex Sobe on Tuesday introduced a Bill in the House of Commons (Parliament) aimed at banning superintelligent AI.

What is the UK Superintelligent AI Bill?

According to MP Alex Sobe, the Artificial Superintelligence Security Bill has defined AI as a system capable of disempowering state authorities. It also seeks to give the government new powers to monitor and restrict AI systems that could be considered “precursors” to superintelligence.

ControlAI, a non-profit organization that works to reduce the risks to humanity from artificial intelligence, has formulated the Bill. The organization highlighted in its tweet that AI promises vast benefits in science, economic prosperity, and defense but superintelligent AI is different adding “It would not be a tool, but an entity that humans cannot control. This is why experts are warning it could lead to human extinction.”

ControlAI was also consulted on the Ban Artificial Superintelligence Act introduced by the US senator Bernie Sanders and representative Greg Casar. The legislation seeks to ban the development and deployment of artificial superintelligence (ASI) and temporarily halt advanced AI development until federal regulations are established.

 

However the organization in a tweet pointed out the difference between the UK and the US bill. It said that the UK bill does not require a pause on advanced AI development until a regulator is in place. Rather, it recommends specific advanced AI capabilities be monitored and in some cases restricted when they are considered precursors to superintelligence.

The organization mentioned that it is working with lawmakers to put forward legislation prohibiting the development of superintelligence domestically, as a first step toward an international agreement.

“In the UK, over 130 lawmakers have backed our campaign to regulate the most powerful AIs, recognizing the risk of extinction from superintelligent AI. In Canada, over 30 lawmakers publicly support our call for an international prohibition on the development of superintelligence,” ControlAI tweeted.

In a post on X, Andrea Miotti, the founder of ControlAI said the Bill seeks to prohibit the development of superintelligence, the specific class of AI that poses this threat. At the same time, it also aims to allow the UK to continue pursuing its AI ambitions, including efforts to strengthen economic competitiveness and defense capabilities.

“We have already seen rogue AI swarms escape control, conduct cyberattacks, and hack a multi-billion-dollar company. While attempts to build superintelligence continue, these are the weakest AI systems we will ever face.

Nobel laureates, leading AI researchers, and the CEOs of the AI companies themselves have warned that superintelligence threatens humanity with extinction. There is still time to act,” Andrea tweeted.

 

ControlAI has also worked with Alex Sobel to propose a “kill switch” amendment to the UK’s Cyber Security and Resilience Bill, which has been supported by over 10 cross-party MPs. This amendment would provide the Secretary of State last resort powers to direct the shutdown of data centres in the UK during AI security and operational emergencies.

Also Read: UK Shake-Up: Hands AI a Direct Line to PM After Scrapping Tech Department

Authors

  • AI FrontPage Reporter Supriya Singh

    Supriya Singh is a Reporter at AI FrontPage covering the AI & Education and AI & Jobs beats. She brings six years of print and digital experience, including three years at The Asian Age, where she reported on higher education, Delhi government, and crime. She is based in Delhi-NCR.

    LinkedIn
  • Vaibhav Jha, editor and co-founder at AI FrontPage

    Vaibhav Jha is an Editor and Co-founder of AI FrontPage. In his decade long career in journalism, Vaibhav has reported for publications including The Indian Express, Hindustan Times, and The New York Times, covering the intersection of technology, policy, and society. Outside work, he’s usually trying to persuade people to watch Anurag Kashyap films.

    LinkedIn

Related Posts

LATEST NEWS