Also the author is deliberately chooses a model that is 1 year old and was supposed to be underpowered even then. If cost was deciding factor, they could’ve chosen Luna.

  Model                       AA Index   Cost/task
  Claude 4.5 Haiku (thinking)    17       $0.21
  GPT-6 Luna (max)               37       $0.07
  GPT-6 Sol (low)                34       $0.13
  GPT-6 Sol (medium)             40       $0.25

Luna (low) scores higher and costs about 47x less per task and performs better.

And Luna (max) scores 37 while still 30% of the cost of Haiku which scored 17.

Why deliberately choose a model that is known to be poor and also costly?