Core Insights - OpenAI plans to initiate advertising tests within the ChatGPT application for select users in the U.S. in the coming weeks [1] - The advertising will target free ChatGPT users and those subscribed to the new low-cost Go plan, priced at $8 per month, which is currently expanding from India to the U.S. market [1] - The higher-priced premium version of ChatGPT will remain ad-free [1]