According to CoinMeta, Microsoft CEO Satya Nadella emphasized that customers must have the ability to freely switch between different AI models, whether they are closed-source or open-source. During a teleconference on Wednesday, he told analysts that the number of Microsoft customers building with multiple models has quadrupled since the beginning of this year. Nadella stated, "You need to separate your system framework from the models, which means that at any given time, any particular model can be replaced. You should also be able to use cutting-edge models. There's no reason not to do so, but you can also use multiple models, right?" Microsoft has investments in both OpenAI and Anthropic, but last week it jointly signed an open letter supporting open models with companies such as NVIDIA and Palantir.