ToplineAmazon on Monday announced it would invest up to $50 billion to expand AI and supercomputing capabilities for the U.S. government—ranking as the fourth-largest deal surrounding AI this year, as Wall Street anticipates global spending to accelerate in the coming years. Spending on AI has accelerated this year, as Wall Street anticipates global expenditures nearing half a trillion dollars by 2026.Getty ImagesKey FactsGlobal annual AI spending is expected to swell to$375 billion by the end of the year ...