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One robot policy adapted to a controller it had never seen by watching what that controller does

AspireAI community · arXiv (2610.39280)
Generalist robot policies learn from data gathered across many robots, but they usually assume a single controller per robot - and different controllers give the same action different physical meaning, so pooling the data directly breaks transfer. This work encodes behavioural interaction under a controller as examples of commanded actions and the resulting robot motion, and a transformer context encoder summarises those interactions so a single policy adapts in context. Across real-world experiments spanning six controller types plus variations in gains and compliance, the method improved average success by 33 percentage points over naive data pooling, reached 50 percent success on unseen controller modes and 52 percent on unseen controller gains, and transferred even when controller-specific data was scarce. On contact-rich tasks like USB insertion and surface wiping the adaptation changed strategy, not just actions. The limitation: the context encoder has to be fed interaction examples, so it does not remove the need to collect them.
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