
UMA
Paris-based physical AI company developing general-purpose mobile and humanoid robots, including the Northstar humanoid, trained through a learning-from-demonstration architecture the company calls Real-Time Learning.
- Founded
- 2025
- Headquarters
- ParisFrance
- Total funding
- $40M
- Products
- 3
- Our coverage
- 3stories
What the company builds
UMA — Universal Mechanical Assistant — is a Paris company building general-purpose mobile and humanoid robots. It first surfaced through job listings in November 2025 and exited stealth on 1 December 2025 with a Business Wire launch release. Its stated product plan covers two lines: a dual-arm mobile robot aimed at warehouses and assembly lines, and a more compact humanoid intended for human-oriented spaces such as hospitals, labs and homes.
On 7 July 2026, at the Machina Summit in Paris, UMA showed what CEO Rémi Cadène called "Prototype Version 0" and published the design of its first humanoid, Northstar. Public descriptions put Northstar at roughly 40 kg, with a visor in place of a face and a soft outer shell; a specialist robot tracker lists 165 cm in height, a 15 kg rated payload and 24 degrees of freedom, twelve of them in the hands. Cadène has been explicit that the biped is the long-term goal and that the first industrial product will be a wheeled, dexterous machine, with a concept prototype targeted for the end of 2026.
Technical approach
Alongside the hardware, UMA named the method behind it: Real-Time Learning, an architecture the company says lets robots acquire skills from demonstration rather than manual reprogramming, then improve through repetition. That is consistent with what the early recruitment posts implied — a sim-to-real pipeline, reinforcement and imitation learning, and in-house teleoperation for data collection. The team's lineage runs through LeRobot, the open-source robot-learning library Cadène led at Hugging Face and that CTO Simon Alibert co-founded.
People and backing
UMA was founded in 2025 by Cadène (CEO, previously Tesla Autopilot and Optimus), Pierre Sermanet (chief science officer, Google Brain and DeepMind), Robert Knight (chief robot officer, designer of the open-source SO-100 arm) and Alibert. Yann LeCun advises the company, as does Hugging Face co-founder Thomas Wolf. Reported backers include Greycroft, Red River West, Kima Ventures and Factorial. The size of the round is the weakest part of the public record: a roughly $40 million seed has been reported, but the company has not confirmed a closed figure.
Traction and position
At the July unveiling UMA said it was in talks with about 50 potential customers, with pilot programmes in logistics, manufacturing and healthcare planned during 2026. Nothing has been publicly confirmed as deployed. Cadène frames the opportunity as European labour shortage rather than consumer robotics, and has drawn contrasts with incumbents — arguing that Unitree's low-cost humanoids largely serve the research market and that his former employer's Optimus programme remains at proof-of-concept stage. UMA sits in a Paris cluster that has thickened quickly, including LeCun's own AMI Labs, and its credibility currently rests on team pedigree and one prototype rather than on shipped units.
Robots & products
A selection of the company's announced products, not a complete catalogue.
Northstar
PrototypeBipedal humanoid · announced July 2026
UMA's first humanoid robot design, a lightweight human-scale machine with a visor in place of a face, intended to learn industrial tasks from demonstration.
- Height
- 165 cm· 5 ft 5 in
- Weight
- 40 kg· 88 lb
- Payload
- 15 kg· 33 lb
- DoF
- 24
Prototype Version 0
PrototypePlatform · announced July 2026
An early hardware, software and AI prototype designed and assembled in Paris and shown at the Machina Summit after roughly nine months of work.
Real-Time Learning
AnnouncedAI model · announced July 2026
A learning architecture UMA says lets robots acquire new skills through demonstration and practice rather than manual reprogramming.
Funding
$40M raised| Round | Date | Amount | Valuation | Lead investors |
|---|---|---|---|---|
| Seed | December 2025 | $40M | — | Greycroft |
Timeline
Northstar humanoid and Real-Time Learning unveiled at Machina Summit
UMA showed 'Prototype Version 0' plus the design of a roughly 40 kg humanoid and named the demonstration-based learning architecture behind it.
businesswire.com ↗- Reported
Company says it is in talks with 50 potential customers
Cadène said pilot programmes in logistics, manufacturing and healthcare were planned for 2026, with a wheeled dexterous robot shipping before the biped.
electrek.co ↗ Yann LeCun named as UMA adviser as AMI Labs launches
LeCun, who advises UMA, founded AMI Labs in Paris, and UMA investor Greycroft was reported to be in talks to back it.
The World Model Rebellion: Yann LeCun Launches AMI Labs to Challenge the 'LLM-Pilled' ConsensusUMA exits stealth as Universal Mechanical Assistant
A Business Wire launch release introduced the founding team from Tesla, Google DeepMind, Nvidia and Hugging Face and a plan for mobile and humanoid robots.
UMA Exits Stealth: The European Robotics ''Supergroup'' Arrives in Paris- Reported
Reported seed round of about $40 million
Backers reported include Greycroft, Red River West, Kima Ventures and Factorial, but UMA has not confirmed a final round size.
UMA Exits Stealth: The European Robotics ''Supergroup'' Arrives in Paris Stealth startup surfaces through Paris job listings
Recruitment posts for a founding team pointed to sim-to-real training, stylized humanoid walking and an in-house teleoperation data pipeline.
In Paris, a New Stealth Startup Named UMA Enters the Humanoid RaceUMA founded in Paris by four AI and robotics veterans
Rémi Cadène, Pierre Sermanet, Robert Knight and Simon Alibert founded the company; the exact month is not confirmed, though Cadène said in July 2026 it had been nine months since UMA was created.
businesswire.com ↗
Latest on UMA
The World Model Rebellion: Yann LeCun Launches AMI Labs to Challenge the 'LLM-Pilled' Consensus
Meta’s former AI chief is taking his 'contrarian' bet to Paris, founding AMI Labs to build non-generative world models. Between a rumored $3.5 billion valuation and high-profile spats with Elon Musk, LeCun is betting that the path to true robotic intelligence doesn't start with language.
UMA Exits Stealth: The European Robotics ''Supergroup'' Arrives in Paris
Led by former Tesla and Hugging Face researcher Rémi Cadene, UMA reveals a heavyweight founding team and ambitious plans for general-purpose robots by 2026.
In Paris, a New Stealth Startup Named UMA Enters the Humanoid Race
Job listings reveal a new French venture building "intelligent humanoid robots" with a focus on stylized movement and learning-based control, adding to the heating European robotics landscape.
Sources
- UMA Unveils Its Vision for the Next Generation of Humanoid Robots· checked September 6, 2026
- Ex-Tesla Optimus scientist unveils European humanoid robot startup· checked September 6, 2026
- Uma Seed · $40M raised · (2025)· checked September 6, 2026


