Anthropic makes more money when people use 5% of what their subscription offers them. This allows them to sell more subscriptions without paying for more capacity.

I don't think the current subscription price is intended to be a money maker. It's the loss leader to get people invested in the companies' tooling, and make those people more willing to start paying higher enterprise rates as they grow.

Do we have any concrete numbers of how many of their users are subscription vs enterprise, though? Because enterprise users are paying API prices (or at least my employers are)

Their enterprise customers pay via metered actual use.