XPENG reveals next-gen Iron at AI Day, so lifelike viewers accused it of hiding a human.

At its 2025 AI Day in Guangzhou, Chinese EV maker XPENG unveiled a next-generation version of its Iron humanoid and staged it with an unusually human gait, sending it down a runway with fluid, model-like movement. The demonstration was so lifelike that a large share of Chinese social media insisted a person had to be inside the suit — prompting CEO He Xiaopeng to release a follow-up video physically unzipping the robot's back to expose its lattice-like artificial muscles, articulated hand joints, and embedded microphone arrays.

Under the synthetic skin, the new Iron is built around a humanoid spine, bionic musculature, flexible skin, and a hand with 22 degrees of freedom, with a curved display for a face. The compute story is the standout spec: Iron runs XPENG's second-generation VLA (vision-language-action) model on three of its in-house Turing AI chips delivering a claimed 2,250 TOPS. That vertical integration — an automaker supplying its own inference silicon and foundation model to its own robot — mirrors the playbook Tesla has described and is increasingly the dividing line between serious humanoid programs and demo-ware.

XPENG positioned Iron for industrial and commercial environments first rather than the home, and set mass production for the end of 2026. Coming from a company that already runs automotive-grade manufacturing, supply chains, and actuator production, that timeline carries more credibility than the same claim from a pure-play startup, and it plants a Chinese automaker firmly in the same OEM-backed humanoid tier as Tesla, Hyundai/Boston Dynamics, and the Mercedes-aligned programs.

The theatrics matter less than the signal. XPENG used AI Day to argue that physical AI, not just cars and flying vehicles, is now core to its identity, and the viral 'is it a person?' moment did exactly what the company wanted — it made the fidelity of Chinese humanoid hardware the story. For buyers tracking the China-versus-US race, Iron is evidence that domestic silicon and in-house VLA models are closing the perceived capability gap faster than expected.