Diligent Robotics was founded in 2017 in Austin, Texas by Andrea Thomaz (CEO) and Vivian Chu (co-founder, now chief innovation officer) — social roboticists trained at MIT, Georgia Tech, and the University of Texas at Austin. The company's thesis was never general-purpose bipedal humanoids for homes; it was socially intelligent mobile manipulation robots that work alongside clinical staff in busy hospital corridors.
Moxi is Diligent's platform: a wheeled robot with an extendable arm, secure drawers, and an expressive face designed to navigate elevators, open doors, and deliver medications, lab samples, and supplies autonomously. As of early 2026, Diligent reported nearly 100 Moxi robots across 25+ US hospital facilities, with more than 1.25 million autonomous deliveries completed — one of the largest commercial deployments of mobile manipulation robots working alongside people. Customers include Northwestern Medicine, ChristianaCare, Rochester General Hospital, UTMB Health, Shannon Medical Center, Endeavor Health, and Novant Health.
The company raised over $100 million from investors including Tiger Global, Canaan, and True Ventures before a strategic exit. On January 20, 2026, Serve Robotics (Nasdaq: SERV) announced it would acquire Diligent for $29 million in stock plus up to $5.3 million in earn-out milestones; the deal closed January 27, 2026 per SEC filings, with Diligent continuing as a subsidiary under Thomaz's leadership. Serve framed the acquisition as expanding its Physical AI platform from sidewalk delivery robots into indoor healthcare environments.
In October 2025, Diligent unveiled Moxi 2.0 at NVIDIA GTC — a next-generation platform with NVIDIA Thor compute (roughly 10× prior processing power), redesigned drawers and hardware based on nurse feedback, and a robot foundation model trained on years of hospital interaction data. First Moxi 2.0 units were planned for hospital deployment in the first half of 2026, with Diligent targeting 15+ robots per site and thousands deployed by 2030. Serve also disclosed expected annual revenue of $200,000–$400,000 per hospital facility.
For a robixone buyer evaluating Diligent: this is not a household humanoid. Moxi is sold through hospital RaaS (robot-as-a-service) contracts in the United States — pricing is not publicly disclosed for consumer purchase because there is no consumer product. Robixone rates Moxi at HOSI 8.5 for its category-leading hospital reliability, but its home suitability score reflects reality: Moxi belongs in a health system, not a UK or US apartment.