Microsoft's Azure cloud service now offers over 1,900 AI model variants from partners like OpenAI and Meta Platforms, with the recent addition of xAI's Grok models. At the Build conference, Microsoft unveiled developer tools including an AI model leaderboard and solutions for creating custom AI models. CEO Satya Nadella and Elon Musk highlighted the collaborative nature of AI technology, with Microsoft projecting at least $13 billion in annual AI revenue.