newsletter.semianalysis.com › p Amazon’s AI Resurgence: AWS & Anthropic's Multi-Gigawatt Trainium Expansion … Azure’s AI outperformance over peers is entirely driven by its OpenAI partnership. As of Q2 2025 June 2025 , all of OpenAI’s $10B cloud spending is booked by Azure. … Sep 3, 2025 · Jeremie Eliahou Ontiveros