As of March 1, 2023, there are no specific daily or monthly usage limits mentioned in the OpenAI Pricing details for the ChatGPT API. The usage costs for the API are determined based on the number of tokens processed per request.
However, do keep in mind that OpenAI might have fair usage policies to prevent abuse or violation of their terms of service. The usage can also be limited by your assigned rate limits. For free trial users, the rate limit is 20 RPM and 40,000 TPM, while pay-as-you-go users have a limit of 60 RPM and 60,000 TPM during the first 48 hours, and 3500 RPM and 90,000 TPM after the first 48 hours.
Always ensure to check the latest from the official OpenAI documentation or OpenAI API pricing page for the most accurate information.
