Alphabet has the option to buy up to $10 billion in Anthropic shares alongside its planned IPO, while Amazon has invested $13 billion in the AI startup. The agreements highlight Big Tech’s growing financial and infrastructure ties to AI developers. Anthropic expects to recognise $23.7 billion in restricted-stock-unit compensation expense over a weighted-average period of 2.1 years, alongside $3.1 billion linked to other outstanding equity.