limit | OpenAI | Page 1

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OpenAI has implemented usage limits for various features of GPT-4o, particularly for Free tier users. These limits apply to the number of messages that can be sent, the use of advanced tools, and the use of GPTs in general. For instance, as of July 19, 2023, ChatGPT Plus customers can send 40 messages every 3 hours with GPT-4, a limit that may be dynamically adjusted based on demand and system performance source (https://help.openai.com/en/articles/6825453-chatgpt-release-notes#h_e65b44764b).

Free tier users have access to GPT-4o with a limit on the number of messages they can send, which varies based on current usage and demand. When this limit is reached, users are switched back to GPT-3.5 source (https://help.openai.com/en/articles/7102672-how-can-i-access-gpt-4-gpt-4-turbo-and-gpt-4o#h_f6a24d9dd8).

Rate limits for Free tier users are also applied to the use of GPT-4o and other GPTs. Once a user hits their limit for GPT-4o, they won't be able to use GPTs until their rate limit resets source (https://help.openai.com/en/articles/9275245-using-chatgpt-s-free-tier-faq).

As for whether these limits will always be in place, it's not explicitly stated in the provided sources. However, it's mentioned that OpenAI expects massive demand and will be scaling up and optimizing their systems over the coming months source (https://help.openai.com/en/articles/7102672-how-can-i-access-gpt-4-gpt-4-turbo-and-gpt-4o#h_5f200cf4de). This suggests that the current limits may be subject to change as OpenAI continues to optimize its systems to accommodate user demand.

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