I propose that the latest version of ChatGPT (o1-preview) is Turing complete. My argument hinges on a simple observation: ChatGPT can execute arbitrary programs written in the BASIC programming language.

Given that a system capable of running arbitrary BASIC programs is Turing complete, it seems reasonable to conclude that ChatGPT itself possesses this property.

Evidence: I’ve tested ChatGPT with a variety of BASIC programs, such as the following:

  10 LET X = 0 
  20 LET Y = 1 
  30 FOR N = 1 TO 15 
  40 LET Z = X + Y + 1
  50 LET X = Y 
  60 LET Y = Z 
  70 PRINT Z
  80 NEXT N

I'd love to hear the community's thoughts on whether this observation qualifies ChatGPT as Turing complete and the broader implications if so.