Elon Musk

As you've heard me say a few times, I think Optimus will be our biggest product.

Not just Tesla's biggest product ever, but probably the biggest product ever.

It's weird grasshopper-like legs allow it to crouch and pick up items off the floor, and it can surprisingly handle stairs as well.

I think everyone on Earth is going to have one and going to want one.

Who wouldn't want a robot to, you know, assuming it's very safe...

watch over your kids, take care of your pet.

We're setting it such that it is, at a mechanical level, at a physical level, you can run away from it.

LAUGHTER

And most likely overpowered.

So hopefully that doesn't ever happen, but...

You never know.

Elon Musk of Tesla and SpaceX fame says OpenAI lost its way.

It was founded as a nonprofit to create AI for the benefit of humanity, but he argues that a for-profit arm designed to help raise money and attract talent has taken over.

On the stand during week one, Musk's testimony got heated at times.

He said Sam Altman and fellow founder Greg Brockman, quote, stole a charity and have enriched themselves.

OpenAI argues that Musk left after a power struggle and launched this case out of sour grapes.

He's since gone on to start his own for-profit AI company, which competes against OpenAI.

And OpenAI lawyers say he even tried to poach its employees for Tesla while he was on the board.

Altman is expected to testify in the coming days.

John Rewich, NPR News, San Francisco.