Sam Altman is leaving no room for doubt about his views on an Elon Musk-led bid to take control of OpenAI. In a letter to OpenAI staff Monday, the CEO put the words “bid” and “deal” in scare quotes and said the startup’s board has no interest in the offer.

The best outcome for Microsoft would be to use this moment to double-down on its own homegrown AI initiatives, while making sure it can still benefit from — but not depend on — OpenAI's technologies.