Optimus, also known as Tesla Bot, is a general-purpose robotic humanoid under development by Tesla, Inc. It was announced at the company's Artificial Intelligence (AI) Day event on August 19, 2021, and a prototype was shown in 2022. CEO Elon Musk stated in 2022 that he thinks Optimus "has the potential to be more significant than [Tesla's] vehicle business over time." Media and expert opinions based on corporate showcases have been mixed.

A humanoid robot is a robot resembling the human body in shape. The design may be for functional purposes, such as interacting with human tools and environments, for experimental purposes, such as the study of bipedal locomotion, or for other purposes. In general, humanoid robots have a torso, a head, two arms, and two legs, though some humanoid robots may replicate only part of the body, for example, from the waist up. Some humanoid robots also have heads designed to replicate human facial features such as eyes and mouths. Androids are humanoid robots built to aesthetically resemble humans.