London Mayor Sadiq Khan has issued a stark warning that artificial intelligence (AI) could act as a "weapon of mass destruction" for jobs across the capital, potentially triggering an era of mass unemployment if not managed responsibly.
A 'Colossal' Impact on London's Economy
In a major speech delivered at Mansion House on the evening of Thursday 15 January 2026, Khan stated that AI's effect on London will be "nothing short of colossal" in the coming years. He argued that the city is uniquely vulnerable due to its heavy concentration of white-collar roles in finance, professional services, and creative industries.
Khan emphasised that entry-level positions are likely to be the first and hardest hit, with jobs at risk of disappearing faster than new ones can be created. This warning comes as research reveals that over half of London's workers expect AI to change their jobs within the next year.
Moral Duty and a Call for Action
The Mayor asserted that leaders have a "moral" duty to ensure AI technology benefits workers rather than harming them. While acknowledging AI's potential to revolutionise public services, boost productivity, and tackle complex issues from cancer care to the climate crisis, he painted a dire alternative.
"Used recklessly, it could usher in a new era of mass unemployment, accelerated inequality and an unprecedented concentration of wealth and power," Khan told assembled key figures.
His proposed solution centres on training and upskilling the workforce. He announced the creation of a new taskforce on AI and the future of work, which will produce a report on the labour market by summer 2026, alongside plans for free AI training for Londoners.
Contrasting Approaches and Economic Context
Khan's comments represent one of the boldest statements by a UK leader on AI's potential to disrupt the jobs market. His focus on skills contrasts with more regulatory approaches, such as that pursued by the EU, while the UK and US governments have adopted a lighter-touch strategy towards AI development.
The warning arrives amid a puzzling economic landscape. The UK's unemployment rate has risen to 5.1 per cent, though most analysts attribute this to higher taxes, regulation, and falling inactivity rates rather than AI. The current Labour government has prioritised integrating AI tools into public sector systems.
Khan concluded with a call for collaboration: "We need to work with businesses and unions to encourage a responsible and thriving AI industry, here in London, so that London can continue to punch above its weight and compete with the likes of Beijing and Silicon Valley."
