Tutor Intelligence Lands $75M a16z-Led Series B for Robot Fleet

Tutor Intelligence closed a $75 million Series B led by Andreessen Horowitz, bringing total funding to $117 million. Union Square Ventures, which led the Series A, and Neo, the seed lead, also joined, Forbes reported.

The product is two warehouse robots. Sonny has two arms and greater dexterity for each picking in e-commerce fulfillment; Cassie has a single arm and handles case picking and palletizing. Customers do not buy them. Tutor rents them by the hour, with no upfront purchase and no long-term contract. The company's site advertises robot workers "from $14 an hour", and co-founder Josh Gruenstein has quoted a $16-per-hour rate for work in mid-market factories.

Behind the fleet is what the company calls a classroom. Tutor pre-trains robots at Data Factory 1, a facility of 100 bimanual manipulators, and says that running the same policy across all 100 robots lets it "detect and correct robot behaviors 100x faster". Models fine-tuned there cut rollout from weeks to days before a robot reaches a customer site. When the AI gets stuck in the field, remote human "tutors" step in, and the recovery data feeds back into the next model.

Gruenstein frames the loop plainly: "What if we could build this network of robots out in the real world, connect them with human teleoperators which we call tutors that teach the robots how to do new tasks, and in the same way the internet by emission created this data set to train these frontier models, we can do the same with robots."

Nearly a third of customers who got Tutor robots this past year came back for more units, the company says. It expects more than 1,000 robots under contract by the end of 2027. The round lands the same day GenRobot AI disclosed $100M for robot training data, part of a steady run of 182 robotics stories we have tracked in the last 90 days.