Microsoft has unveiled its Maia 200 AI chip with 140 billion transistors and 216GB of HBM3e memory, boasting 30% better performance per dollar than previous models. This new chip powers OpenAI’s GPT-5.2, Microsoft 365 Copilot, and other enterprise applications, aiming to reduce reliance on Nvidia’s AI hardware. The announcement has sparked investor optimism, with shares rising and analysts maintaining a strong buy rating on Microsoft stock with a $600 price target.