Amazon.com (NasdaqGS:AMZN) signs a US$4b cloud services agreement with Pinterest to expand AI infrastructure on AWS. The Pinterest deal is described as the largest infrastructure commitment in Pinterest's history, focused on AI, cloud, and chip utilization. Anthropic files confidentially for an IPO at a valuation reported near US$1t, with Amazon holding an equity stake of about 21%. For investors watching Amazon.com (NasdaqGS:AMZN), these developments sit at the intersection of cloud...