Maia 300: Microsoft Builds the Exit From a Compute Landlord Model It Helped Finance

The Shift From Borrower to Builder Microsoft is no longer content to finance the dominance of the chipmakers it depends on. The company that paid Anthropic’s largest cloud bills and sat inside the Broadcom-orchestrated financing web that we traced through Post 131186 and Post 131806 just unveiled its own silicon at the OCP Global Summit . The Azure Maia 300, announced by Scott Guthrie, Microsoft’s EVP of Cloud+AI, via the company’s blog on October 12, 2026, is not a token effort.