[layer8]

ML has always been considered a subfield of AI: https://en.wikipedia.org/wiki/Machine_learning#Artificial_in...

AI as a field started in 1956, while the term “machine learning” was coined in 1959, as a sub-discipline of it.

[Traubenfuchs]

That might be a fact in theory, but practically most companies literally did "replace all" of "ML" with "AI" in all their marketing materials and ML-engineers got rebranded as AI-engineers. ML-models are now called AI-models. Because ML is old and busted and AI is the new hotness.