The Causal Architecture of LingBot-VA 2.0
rohanpaul_ai · x · 2026-07-14
This post breaks down the core architecture of LingBot-VA 2.0:
- The control policy is trained in a causal manner from the ground up, rather than retrofitting a bidirectional video model into a controller.
- The video stream utilizes 128 routed experts, top-8 routing, and 1 shared expert. The total parameter count is around 13B, but only 1.9B are activated per token.
- The action stream remains dense, aiming to balance overall capability with control latency.
Related event: LingBot-VA 2.0: A Control-Native Foundation Model for Robotics(9 posts)→
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