Elon Musk, the presenters and others made clear before Optimus entered the stage that the robot was free to roam the streets without restriction. It walked towards the audience slowly, raised its hands in dance moves, and stopped when the walls were removed. It was only on the stage for about one minute.
Once the robot left, Musk reassured the crowd that Optimus could do much more than what was demonstrated live, but the Tesla team didn’t want it to “fall on its face.” Then the presentation team played a video of the robot doing “a bunch of other things” like carrying packages, watering potted plants, and organizing components in a box.
Musk explained that the live demo robot was a “bumble” model and that they had an actual Optimus bot that more closely resembles what the company will put into production. However, that robot wasn’t quite ready to walk, although Musk said it would be able to in a few weeks. A sleeker model was then presented by the presentation team, which appeared to wave on its own. The production unit remained stationary, and did not move its arms.
Musk went on to say that Optimus humanoid robot will likely be ready in the coming “months or years” and have a price tag of “less than $20,000.”
Source: The Verge