Ant Group’s Robbyant Unveils LingBot-VA 2.0: A Causal Video-Action Model Built Natively for Physical AI
Robbyant, the embodied AI unit inside Ant Group, has released the LingBot-VA 2.0.The first embodied-native foundation model. It describes a video-action foundation model for generalist robot manipulation. The research team pretrains the whole stack for embodiment instead of fine-tuning a video generator. What is LingBot-VA 2.0? Most video-action models reuse two components built for digital content creation. One is a reconstruction-oriented VAE. The other is a bidirectional video-diffusio
A video-action foundation model called LingBot-VA 2.0 has been released for robot manipulation tasks. Unlike earlier models that adapted components built for digital video creation, this system was designed from the ground up specifically for physical AI, using a causal architecture that unfolds strictly forward in time rather than bidirectionally. The model addresses key limitations of previous approaches by using a semantic visual-action tokenizer that preserves action-relevant information, a sparse mixture-of-experts backbone for efficient processing, and asynchronous execution that allows robots to act while the system plans ahead. In testing on 50 robotic tasks, the system achieved higher performance than comparable models and reached control speeds of 225 Hz through various acceleration techniques.
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