Elon Musk's surprise Anthropic deal allows him to accomplish two things at once: turn unused compute into revenue before an expected SpaceX IPO next month — and stick it to his archrival, Sam Altman. Why it matters: Musk went from calling Anthropic "evil" to doing business with it in three months, showing how quickly competition can give way to strategic necessity in the AI race. The big picture: The deal helps Anthropic address one of its most pressing problems — a severe compute deficit. The