I’ve been digging into pricing for AI products and one thing keeps coming up. A founder can see revenue in Stripe and model spend in OpenAI, but still not really know which feature or customer is killing the margin. For example: A user pays $49/mo. They run a PDF Q&A workflow a lot. Some runs retry. Some answers fail. Some files create huge context windows. At the end of the month the OpenAI bill is higher than expected, but it’s hard to tell what actually caused it. Tokens...