Xiaomi's robots ran eight hours. It won't say how well

On 3 November Xiaomi Tech posted footage of two full-size humanoid robots working a shift at its EV factory, sorting center-console side covers. A counter in the corner tracks cumulative working time toward eight hours. What the video never shows is any measure of whether the robots earned those hours.

An eight-hour clip and a one-line claim

The footage shows the machines pulling covers from bins, carrying them to storage racks and placing them into slots. Xiaomi's post on X says the robot "can autonomously detect and correct anomalies while coordinating with the production line," and the company told Electrek that it covered the full day of production needs at that workstation. Xiaomi published the clip while collecting awards at the World Internet Conference in Wuzhen, which is the usual moment for a company to show its best footage. Around 1:37, a segment labelled "Dropped Material: Multi-Robot Collaboration" shows a humanoid upper body on a wheeled base rolling in to help the two legged robots.

The numbers exist for the older stations

That is the awkward part. Xiaomi has published real figures before: a 90.2% success rate over three hours in March, installing self-tapping nuts at its Beijing plant as an "intern," fast enough to meet a 76-second cycle time, then 98% by July, when it added two harder stations, this one among them. For the eight-hour shift there is no throughput, no success rate, no count of human interventions. Neither outlet that covered it could extract one. How the robots stayed powered is also unexplained, whether by battery swaps, a tether or charging breaks, and a break is not a shift.

What a demo can and cannot prove

Electrek's yardstick is the right one. Tesla's Optimus robots at the 2024 "We, Robot" event were remotely operated by humans, which Tesla did not disclose at the time, and Tesla now says it will not deliver Optimus to outside customers until late 2027. Xiaomi, to its credit, puts numbers beside its robots, and says its open-source Xiaomi-Robotics-1 model, pre-trained on 100,000 hours of real-world robot data, has begun trial runs in staff apartments. In December 2025 chief executive Lei Jun said the company intends to deploy humanoids in large numbers across its factories within five years. But a clip with a running clock and an "Autonomous, 100x Speed" overlay is a demonstration, not a measurement.

Ran eight hours and worked eight hours unattended are different claims, and only the first is checkable from this footage. Xiaomi can settle it with figures it already knows how to publish.