In recent years, documents show, Microsoft has also provided the Israeli military with large-scale access to OpenAI’s GPT-4 model – the engine behind ChatGPT – thanks to a partnership with the developer of the AI tools which recently changed its policies against working with military and intelligence clients.
Microsoft isn’t mentioned in the text, but the 3rd citation is a reference to Microsoft: Microsoft to Launch Much Awaited Cloud Server Farm in Israel in 2021
Separately, I did a quick search: Revealed: Microsoft deepened ties with Israeli military to provide tech support during Gaza war