THE MECHANISM

Vision + language + an action expert

03Reuse semantics, specialize action
→
04Action interfaces differ
→
05Generalist does not mean embodiment-free
FAILURE → REPAIR
Common trap

“A large VLM plus a linear action layer is automatically a robust VLA.”

Better model

Action representation, temporal chunking, data balance, calibration, and deployment latency are first-class parts of the system.

YOUR NEXT GATE

Dissect SmolVLA before running it

  1. 1Label the vision, language, state, and action paths in the ANIMA diagram.
  2. 2Find where action chunk length is configured.
  3. 3Write down the policy device and expected inference host.