Microsoft Goodyear is an operational AI data center in Goodyear, AZ, USA, with AI chips owned by Microsoft and used by OpenAI (likely) and Microsoft. It hosts an estimated 205k H100-equivalent chips — supported by 202 MW of IT power — at a capital cost of $7.7 B. We estimate that it uses Nvidia A100, Nvidia H100, and Nvidia B200 chips. The timeline of IT power and compute capacity is based on satellite imagery, our cooling equipment power model, company disclosures, chip availability, and chip efficiency. In May 2026, Microsoft indicated that its own MAI-Thinking-1 model was trained at the Goodyear facility.