Britain can leapfrog rivals by owning both the silicon and the models that power AI, rather than renting compute from US hyperscalers.

Evidence For

• £1.1bn package unveiled at London Tech Week: £750m for a national AI supercomputer plus £400m for next-generation domestic chips.
• Blue-chip coalition (BT, HSBC, Lloyds, NatWest, BAE Systems) backing Cosine’s Lumen Sovereign model, trained entirely on UK infrastructure.
• London reclaiming top spot in global tech...