AI & ML Efficiency Breakthrough

Enables 10x faster robot trajectory generation by distilling diffusion models into movement primitives.

March 27, 2026

Original Paper

FODMP: Fast One-Step Diffusion of Movement Primitives Generation for Time-Dependent Robot Actions

Xirui Shi, Arya Ebrahimi, Yi Hu, Jun Jin

arXiv · 2603.24806

The Takeaway

By distilling multi-step diffusion processes into a single-step movement primitive decoder, FODMP enables real-time, closed-loop control of complex robot behaviors. This solves the latency bottleneck that previously prevented diffusion-based policies from being used in high-speed manipulation.

From the abstract

Diffusion models are increasingly used for robot learning, but current designs face a clear trade-off. Action-chunking diffusion policies like ManiCM are fast to run, yet they only predict short segments of motion. This makes them reactive, but unable to capture time-dependent motion primitives, such as following a spring-damper-like behavior with built-in dynamic profiles of acceleration and deceleration. Recently, Movement Primitive Diffusion (MPD) partially addresses this limitation by parame