Three years since the debut of ChatGPT, the $500bn start-up is facing significant challenges to its dominance in AI

Governments wrestle with whether to extract more tax from the wealthy or lure them from other countries

Zubir Ahmed says new central service for medical datasets should be leveraged for ‘benefit of Treasury coffers’

A wave of Chinese companies raising money has revived dealmaking in Asia’s financial hub

We invented clocks to measure our days — but they ended up measuring us

Data from the national statistics agency indicates persistent weak demand in the economy

Fiscal watchdog’s letter ‘set out the facts’ about the evolution of its forecasts in the run-up to the Budget

The real losers from Rachel Reeves’ financial statement were not the wealthy, but those on the way to wealth

Czech-born author of witty, cerebral plays was also an award-winning screenwriter

Tie-up marks new level of co-operation between Moscow and Beijing’s military industrial complexes

Announcement comes after military build-up by US forces in region

Campaign will check housing and public buildings for safety, Beijing says

Rachel Reeves has steered the gilt market to a less skittish place with the Budget

Nicolás Maduro has overcome numerous attempts to oust him

Marketing boss says Prime generated €6mn in fare discounts, costing the airline ‘more money than it generates’

The buffer Reeves built into her plans is admirable, but no guarantee of avoiding the nasty dilemmas to come

Rachel Reeves included a measure to limit an inheritance tax charge cited by wealthy as reason for leaving country

The Booker Prize would not have gone to David Szalay’s ‘Flesh’ a few years ago

Bankers are expecting easing of leverage ratio as part of forthcoming review

The ambitious US army secretary has been thrust into the spotlight of Moscow-Kyiv negotiations

Steven Wood pushes for board overhaul after giving up hope of constructive relations with controlling Hayek family

Nobel-winning economist Daron Acemoglu on Zohran Mamdani’s rise, the problem with cultural politics — and the case for pro-worker AI

Update to address potential problems caused by solar radiation could affect 6,000 aircraft

President’s departing aide centralised decision-making in a way no other official had done in Ukraine