Why do you say that MS beating Google on AI? OpenAI is not part of MS (49% ownership is nice but it doesn't give MS control of the company). MS by itself doesn't own any of foundational models competitive with Google. MS has a solid AI research team, but it's not ahead of Google DeepMind. Microsoft Azure beats Google Cloud, but I don't think you count GPU rentals as AI?

If MS actually bought OpenAI, it would be a different story.