Anthropic Faces Compute Crunch From Cloud Providers Doubling as Rivals Ahead of November IPO

Anthropic is struggling to secure sufficient computing power from the cloud providers that increasingly view the AI startup as a direct competitor, even as the company commits over $600 billion to infrastructure expansion ahead of a planned November public listing. According to Anthropic's draft S-1 prospectus filed in September, the company sought more compute capacity from Amazon Web Services, Google, and Microsoft than those partners were willing to provide—a constraint that follows the unexpected explosion of demand for Claude Code, the company's development platform that saw 80 times growth in early 2026 instead of the 10 times expansion management had projected.