Altman et al have been discussing the many model interface in ChatGPT is confusing to users and they want to move to a unified system that exposes a model that routes based on the task rather than depending on users understanding how and when to do that. Presumably this is what they’ve been discussing for some time. I don’t know that was intended to mean they would be working toward some unified inference architecture and model, although I’m sure goal posts will be moved to ensure it’s insufficient.