# JustRUA: A Controlled Study of GPT-6 Robot-Use Agents > Source: > Published: 2026-11-13 11:00:25+00:00 GPT-6 Astra can drive a robot arm directly through a fixed harness, and scores of such robot-use agents on RoboDojo have risen quickly since. Reported systems differ in harness and test subset and often change several designs at once, so it is hard to tell which choices produce the gains. We take th