In the "Transformers" universe, Optimus Prime is the leader of a faction of sentient robots known as the Autobots. He leads them to fight against an opposing faction of sentient robots called the Decepticons.
As a Transformer, Optimus Prime is able to take on the form of a truck to blend in with the human world, and as the leader of the Autobots, he exhibits numerous positive traits that encourage his teammates to fight for his cause. Optimus Prime firmly believes that all sentient beings deserve to live free, and it is under this philosophy that he fights against the Decepticons.
While Optimus Prime has taken on many different forms over the years, his character is frequently portrayed as a morally sound and capable leader. He possesses incredible tactical abilities and admirable leadership skills. He is able to hold his own in combat against both single and multiple opponents, and he is able to operate advanced articles of alien weaponry. Optimus Prime is regarded as an extremely lawful being because he regards justice and law highly, and he believes that co-existence with humankind is not only possible, but also mutually beneficial. The device in his chest plate grants him the accumulated wisdom of all Autobots before him, which makes him a powerful problem-solver and decision-maker.