OpenAI Tells You What You Spent. Not Where. So I Built a Dashboard.

TL;DR: OpenAI's billing page shows total spend. It doesn't show which feature , which tenant , or which conversation caused it. For a multi-tenant AI product, that's flying blind. I built a 3-file monitoring system — a wrapper, a table, a dashboard — that gives me per-call cost down to 8 decimal places. The first time I opened it, I caught a 100× cost gap between two features I'd been treating as similar. The Gap in OpenAI's Dashboard Open platform.openai.com/usage right now. You'll see: Total s