In addition to announcing GPT 4o at its Spring Update event earlier this month, OpenAI also made a number of its subscription-only features available for free users following the livestream. One of the biggest subscription-only features that went free for all ChatGPT users was the ability to access and use custom GPT chatbots. That's right, the GPT store which was opened to paid subscribers earlier this year, is now free for all ChatGPT users.