We tracked 200K AI requests. Here's where the money actually goes

Six months ago I posted here about CostLens — a tool to reduce OpenAI costs. Since then, we've completely rebuilt it based on one question a VP asked our team: "How much faster are we delivering with AI? What's the number?" Nobody could answer. We had cost dashboards, but no way to connect spend to output. So we built that. What CostLens does now It's not just cost tracking anymore. It's three things: Cost attribution — not "you spent $4,200 on OpenAI" but "code review costs $340...