Grasp Failure Recovery: What Happens When a Robot Drops Something

A capability that matters as much as successful grasping itself, and gets far less attention.

Grasp failure recovery covers what a robot does after a grasp attempt goes wrong — the object slips, wasn't where expected, or turns out to be heavier or more slippery than anticipated — rather than assuming every grasp succeeds as planned.

Why this is often overlooked

Demo videos naturally showcase successful grasps rather than failures, which can create an inflated impression of reliability. In real deployments, grasp failure rates that would ruin a highlight reel are routine, and a genuinely useful robot needs to detect failure and retry or adapt rather than continuing as if nothing went wrong.

How systems handle it

Force and tactile sensors typically confirm whether an object was actually secured before the arm moves on, and a failed confirmation can trigger an automatic retry, a different grasp approach, or in commercial settings, flagging the item for human intervention rather than repeatedly attempting an approach that isn't working.