According to an early Universe-style profile published in The Transformers Comics Magazine, Optimus Prime's "official" nicknames were at one point considered to be "Autobot Commander", "Chief", "Big Boss" and "Roller". As far as it is known, no piece of fiction has ever purposely addressed him using these nicknames, though it's a fair bet he's been called "chief" at least once or twice anyway. And technically part of him is called "Roller" with some frequency.
Part of the third wave of 2012-onwards Generations Legends Class toys, Thrilling 30 Optimus Prime is a new mold that is roughly the same size as a Cyberverse Commander Class toy. Both his truck and robot mode are based on his Don Figueroa-designed body from IDW's ongoing series, and features 5mm-compatible hands and roof. He comes with an Ion Blaster which has both 5mm and 3mm posts.
Part of the fifth wave of 2012-onwards Generations Deluxe Class toys, Thrilling 30 Orion Pax is a new mold with a robot mode inspired by Guido Guidi's design for the character, originally seen in Spotlight: Blurr. Some liberties have been taken with the original concept to facilitate his truck mode, which is a new design not based on the Guidi art. He comes with his Ion Blaster and an Energon Axe with a transparent red-orange blade, both of which can peg onto 5mm ports on his hands and vehicle rear sides. Although not depicted on the instructions, the Ion Blaster can also peg into the hole in the larger blade of the Energon Axe.
Exclusive to Walmart, this Deluxe Class Optimus Prime is an all-new mold, close in scale to Voyager Class Megatron. He has a high range of motion, with ball jointed shoulders and hips, swivels at the neck, knees, and feet, and double swivels in the elbows. As a result of the transformation process, he can also rotate at the waist, though this is hindered considerably by his "backpack" kibble. This can be remedied by pointing the truck nose downward, as it is in the packaging. Optimus Prime also features the spring loaded "Automorph" feature in his head, if the truck kibble pushes the small grey switch from his back before splitting the chest into half.
Part of the first wave of Bot Shots Series 1 single-packs, Optimus Prime is a teeny little long-nosed semi truck with "trailer", with a spring-loaded automatic transformation to robot mode triggered when his front bumper is pressed. He has a "spinner" in his chest that shows his three attack types and power levels. His truck mode and robot body are influenced by the live-action Optimus Prime, while his head is taken from the original. His blue paint is light and sparkly-metallic, his red paint is dull matte, and his optics are yellow.
This figure contains an unusual amount of sculpted detail on the inside of the plastic. The gorilla mode's chest has a ribcage, and the inside of the gorilla's face has a sculpted microphone, which lines up perfectly with the robot mode's head! Also, opening this toy's chest in robot mode reveals sculpted detail resembling the Key to Vector Sigma as it appeared in Beast Machines.
Originally, Optimus Prime was created as the leader of the Autobots, though it is unknown how he was created or his origins. In a possible future, Megatron was threatened by the existence of the Aerialbots and had Shockwave build a time machine to send them back in time to get rid of them. However, he only ended up changing history for the better. In the revised timeline, Optimus Prime began his life as a robot named Orion Pax, a mostly defenseless dock worker during the Golden Age of Cybertron nine million years ago, with a girlfriend named Ariel and a best friend named Dion. During this time, a new breed of robot with new flight capabilities appeared on the planet that Orion idolized. When Megatron, the leader of the new group of robots, approached him with inquiries about using one of the dock warehouses, Orion was swayed by Megatron. Both Orion and Ariel were severely wounded when Megatron and his forces attacked in order to claim the energy stored there. Searching for someone to help them, the time-displaced Aerialbots took Orion and Ariel to the ancient Autobot, Alpha Trion, who used them as the first subjects for the new reconstruction process he had developed involving rebuilding the frail Autobot frames into more battle-hardy configurations.