Furthermore, we can extract the average hopping rate of Li-ions by discretizing the MSD of all independent single ion trajectories (details of the discretization procedure are given in the Supporting Information). From the discretized trajectories we calculate Li hopping rates of 2.57 ⇥ 10 5 s 1 for -LPS and 7.0 ⇥ 10 7 s 1 for am-LPS. Our results of significantly faster ion diffusion in am-LPS than in the crystalline -LPS phase are in line with our previous findings and experimental reports . Finally, as a result of using the UFP, we are able to simulate dynamics at 300 K for 1 µs. To the best of our knowledge, simulations of this length have not yet been executed using MLIPs. Typical simulation times with MLIPs are on the order of nanoseconds, reaching 100 ns at most . Additionally, most previous studies use higher temperatures in their MD runs , which induces an extrapolation error in their property prediction at room temperature. With an established methodology like the Turbo-GAP, a 1 µs MD simulation would require on the order of 1 million CPUh. With an acceleration factor of 25 over Turbo-GAP, the UFP-MD for LPS on the other hand was computationally feasible in a couple of weeks (40,000 CPUh on a single compute node).