On September 27, 2025, Musk made an announcement stating that Tesla is forging ahead full - throttle with the mass production of the Optimus robot. The company has outlined plans to commence mass production in 2026 and aims to achieve an annual production volume of one million units within the next five years. The responsibility for this ambitious project will fall on the Fremont Factory. In 2025, there will be a trial production run of 5,000 units. By 2026, the production volume is projected to increase to a range of 50,000 - 100,000 units. And in 2027, the production is set to hit an initial milestone of 500,000 units. (Here, “forging ahead full - throttle” is a more vivid and idiomatic English expression compared to “fully advancing”, conveying a sense of high - energy and determined progress. “Made an announcement stating” is a more natural way in English to introduce the content of the announcement. “Fall on” is a common phrase used to indicate responsibility. “Projected to increase” and “set to hit” are more in line with English business and technological reporting habits, making the description more precise and professional.)