All of the state-of-the-art models are online models - you have no choice, you have to pay for a black box subscription service controlled by one of a handful of third-party gatekeepers. What used to be a cost center that was inside your company is now a cost center outside your company, and thus it is a risk to become dependent on it. Perhaps the risk is worthwhile, perhaps not, but the hype is saying that real soon now it will be impossible to not become dependent on these closed systems and still exist as a viable company.