Microsoft AI chief says the company beat OpenAI at its own game, using a quarter of the computing power

Microsoft AI CEO Mustafa Suleyman told employees during a town hall meeting on Thursday that an in-house model was better than a similar offering from OpenAI, one of the software giant's biggest customers and partners. He said the company now has a stronger pre-trained base model than the model currently powering GPT 5.6 Sol, and that Microsoft used one-quarter of the compute OpenAI used to train its model. Pre-training is the first stage of building an AI model, when it learns patterns from large amounts of text, images and other information, and it requires massive amounts of expensive computing power. Microsoft AI recently announced its latest model, MAI-Base-2.

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