Elon Musk’s artificial intelligence tool Grok went haywire for users of the social media platform X on Wednesday, responding to innocuous queries about things like baseball and puppies with information on South Africa and a conspiracy theory called “white genocide.” It was widespread and extremely weird to witness.

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.