OptimusVLA
Global Prior Meets Local Consistency: Dual-Memory Augmented Vision-Language-Action Model for Efficient Robotic Manipulation
Zaijing Li, Bing Hu, Rui Shao, Gongwei Chen, Dongmei Jiang, Pengwei Xie, et al. · 2026-05-18
- Management
- T2 Dynamic Memory
- Memory changes during deployment through a stable management policy.
- Representation
- Internalized latent & parametric
How experience becomes memory
Each path is one memory component, traced from what is stored to how it is found again.
trajectory priors and recurrent action state
- Represented asPersistent multimodal latent stateInternalized latent & parametric
- Stored inVector-indexed collection, Flat sequential records
- Retrieved bySimilarity search, Latent / parametric activation
- Source evidenceSource not retained
Global Prior Memory retrieves trajectories and Local Consistency Memory tracks executed actions.Full paper: 3.2. Global Prior Memory · PDF p. 4 · Figure 1
How memory changes (T2 operations)
Update · Learned update module
A fixed Mamba module updates action-consistency state. For OptimusVLA, this specifically supports a trained but frozen update module of trajectory priors and recurrent action state.