ChatGPT (free):

> I want to wash my car. The car wash is 50 meters away. Should I walk or drive?

  Walk.
  
  50 meters is a very short distance (≈30–40 seconds on foot). Driving would take longer [...]

> Please; review your answer.

  Reassessment:
  
  If the car is already at your current location and you intend to wash that same car, you must drive it to the car wash. Walking would not bring the vehicle there. [...]

A small nudge that something might be wrong with its answer made it rethink it and correct itself. Also both replies were very fast.

Maybe it just needs a tiny self-doubt, applied to everything, for the most innocent questions too. I don't know.

All models getting this wrong is funny tho.