The announcement was made at Microsoft’s Build developer conference on Monday, and was notable given Microsoft’s partnership with OpenAI. Musk founded xAI, the startup behind Grok, but he has also been locked in a feud with OpenAI since stepping down from its board in the late 2010s, citing disagreements over its leadership direction.

Google on Tuesday unleashed another wave of artificial intelligence technology to accelerate a year-old makeover of its search engine that is changing the way people get information and curtailing the