NEWS: Yilun Chen has joined Tesla’s Optimus team as a staff robotics engineer. He spent the last 4 years at Apple as an ML engineer and robotics research scientist.

"I was totally blown away by the scale and sophistication of the Optimus lab and deep dedication of people when… https://t.co/uzj2uAfbvL pic.twitter.com/lbDS15M24f— Sawyer Merritt (SawyerMerritt) November 30, 2025 https://x.com/SawyerMerrit...