Wire

Physical Intelligence's π0.5 cleans kitchens and bedrooms in homes it never saw in training, with 97.6% of its data from other sources

Physical Intelligence on 22 April 2025 published π0.5, a vision-language-action model that drove mobile manipulators through 10- to 15-minute cleaning jobs in three homes absent from its training set. The San Francisco start-up says co-training on data from other robots, web tasks and spoken coaching, rather than more home-robot data alone, is what lets the model generalise, and its own ablations show which ingredients matter most.