What Exactly Are A.I. Companies Trying to Build? Here’s a Guide. NYT | Top Stories By: Cade Metz and Karen Weise 16 September 2025 at 17:00 Amazon, Microsoft, Google, Meta and OpenAI plan to spend at least $325 billion by the end of the year in pursuit of A.I. We explain why they’re doing it. © Shira Inbar