just charge for consumption. and if your users wants to pre-pay for fixed amounts of consumption then give them that opportunity. per user pricing always seems like a heuristic for how much you think a company can pay rather than getting them to pay for what they use. it subsidizes small companies and then ratchets up costs as they grow, which i guess is good for your business but sure feels like a dark pattern to me…
Everyone is running around storing databases full of passwords, and for what? So they can put "CALL" on the Enterprise tier.