Microsoft faces tougher UK oversight under CMA proposal■ Nvidia’s Jensen Huang warns UK against relying on ‘opaque’ AI models■ Bailey says firms are cutting costs and margins to absorb energy bills■ Intuit to buy British AI start-up Sequence in reported $200m deal■ More than 200 bosses urge Healey to overhaul business rates■ HMRC hands Salesforce 15-year contract to bring AI into tax services■