SpaceX has agreed to invest $2 billion in Elon Musk 's artificial intelligence company xAI. The investment makes up nearly half of the company's recent $5 billion equity round, according to investors cited by The Wall Street Journal.

The per-share price of $212 is up substantially from the $185 set in a prior transaction that valued SpaceX at $350 billion in December. The deal marks a rapidly climbing values for the rocket and satellite maker,