Samsung Electronics has signed a deal to supply chips to Tesla Inc , two people briefed about the matter told Reuters on Monday, in a significant boost to the South Korean tech giant's loss-making contract manufacturing business.

Tesla has also yet to prove that its Full Self-Driving software can be used to power a robotaxi network. While the company has been running an invite-only version of its robotaxi service in Austin since June 22, it’s been a far cry from what Musk has spent years teasing.