As of May 13th 2024, Plus users will be able to send 80 messages every 3 hours on GPT-4o. and 40 messages every 3 hours on GPT-4. The message cap for a user in a ChatGPT Team workspace is approximately twice that of ChatGPT Plus.

Please note that unused messages do not accumulate (i.e. if you wait 6 hours, you will not have 80 messages available to use for the next 3 hours on GPT-4). Each member of the workspace will maintain an independent message cap.