Comment by epistasis

Argh, what I wrote was obviously wrong. What I meant was to refer to the simple n-state Markov models as used past decades.

Anything that's sequential, like language is, will exhibit Markovian properties, and be somewhat a "Markov" model.

Markov chains are a different concept than a Markov model, but I do agree that, technically, an LLM is a Markov model, just with an internal state space that is nothing like what is usually meant when ML people refer to Markov models.