engine

ChatGPT

Luce measures ChatGPT as two separate surfaces. The web app is what a shopper sees when they ask, and the API is what a developer calls. They answer differently, so each keeps its own board and the two are never merged into one figure. Open the surface you mean.

Two surfaces, two boards

Each surface is measured on its own and published on its own.

ChatGPT web appThe live web app, captured as a shopper sees it, with the products the answer put forward.ChatGPT APIThe developer API, called with the same prompt grammar and read as its own board.