Can a robot learn a new task from one demonstration, with no training at all? Machenta, a London startup from
@Ed__Johns, head of the Robot Learning Lab at Imperial College, says yes, and is out of stealth with a $40M seed round co-led by Creandum and USV.
Its model is a vision-demo-action model: like a VLA, but the task is given as a demonstration instead of a sentence. The demo and the live camera images go through the model, which outputs actions in a closed loop. No weights change at test time.
It is trained entirely in simulation, on randomized objects, tasks, scenes and robots, so the weights learn how to pick up a task from a demo rather than any one task. The real tasks are not simulated copies. The team argues this sidesteps much of the sim-to-real gap, because at test time both the demo and the observations come from the real world.
The same model runs on six different robots with different cameras. In hour-long self-resetting runs it placed 74 of 74 blocks, made 78 of 78 screwdriver handovers and stood up 97 of 99 bottles. These are the company's own results on tasks it calls relatively simple, with no paper yet.
It builds on Instant Policy (ICLR 2025) from Johns's lab.
@Machenta_ blog:
machenta.com/blog/instant-ro…