Vision-Language-Action Models for Driving

The superpower of a VLA is Chain-of-Thought (CoT) reasoning for driving.

Scenario: An ambulance is approaching from behind.

• Traditional Stack: Detects object "Vehicle". Classifies as "Emergency". Triggers rule "Yield".
• VLA:

  1.  _See_: "I see flashing lights and hear a siren behind me."
  2.  _Reason_: "This is an emergency vehicle. I need to clear the way. The right lane is empty."
  3.  _Action_: "Signal right, merge right, slow down."

This explicit reasoning makes the system more interpretable and adaptable to novel situations.