[pm]

It depends on your product, and what you expect your customer to do with the results.

  * What does the product actually do?
  * What do they get for a "use"?
  * If the usage-based pricing is an add-on, what value does the product provide without it?

I suspect you're better off with subscription-based pricing in an emerging product category of AI-native solutions. But it really depends on the product.