Britain’s Cosine rallies BT, HSBC, and BAE to build a “sovereign” AI model and cut its reliance on US tech

Britain’s banks, telecoms, and weapons-makers have a new shared anxiety: that the AI they increasingly run on is built, owned, and controlled in the United States. A startup barely three years old is betting they will pay to fix it. Cosine, a UK frontier-AI lab, has assembled a coalition of…